Search a number
-
+
120874428900 = 22345238632
BaseRepresentation
bin111000010010010101…
…1010110100111100100
3102112222221120012110000
41300210223112213210
53440022323211100
6131310130301300
711506244456541
oct1604453264744
9375887505400
10120874428900
1147298511535
121b514727830
13b5243c9914
145bc9527bc8
153226b30900
hex1c24ad69e4

120874428900 has 135 divisors (see below), whose sum is σ = 391928602681. Its totient is φ = 32224836960.

The previous prime is 120874428889. The next prime is 120874428911. The reversal of 120874428900 is 9824478021.

The square root of 120874428900 is 347670.

It is a perfect power (a square), and thus also a powerful number.

120874428900 is a `hidden beast` number, since 120 + 8 + 7 + 442 + 89 + 0 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (120874428889) and next prime (120874428911).

It can be written as a sum of positive squares in only one way, i.e., 43514794404 + 77359634496 = 208602^2 + 278136^2 .

It is a tau number, because it is divible by the number of its divisors (135).

It is a super-2 number, since 2×1208744289002 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 31288369 + ... + 31292231.

Almost surely, 2120874428900 is an apocalyptic number.

120874428900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120874428900 is the 347670-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120874428900

120874428900 is an abundant number, since it is smaller than the sum of its proper divisors (271054173781).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120874428900 is an frugal number, since it uses more digits than its factorization.

120874428900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7752 (or 3873 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The spelling of 120874428900 in words is "one hundred twenty billion, eight hundred seventy-four million, four hundred twenty-eight thousand, nine hundred".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 25 27 30 36 45 50 54 60 75 81 90 100 108 135 150 162 180 225 270 300 324 405 450 540 675 810 900 1350 1620 2025 2700 3863 4050 7726 8100 11589 15452 19315 23178 34767 38630 46356 57945 69534 77260 96575 104301 115890 139068 173835 193150 208602 231780 289725 312903 347670 386300 417204 521505 579450 625806 695340 869175 1043010 1158900 1251612 1564515 1738350 2086020 2607525 3129030 3476700 5215050 6258060 7822575 10430100 14922769 15645150 29845538 31290300 44768307 59691076 74613845 89536614 134304921 149227690 179073228 223841535 268609842 298455380 373069225 402914763 447683070 537219684 671524605 746138450 805829526 895366140 1119207675 1208744289 1343049210 1492276900 1611659052 2014573815 2238415350 2417488578 2686098420 3357623025 4029147630 4476830700 4834977156 6043721445 6715246050 8058295260 10072869075 12087442890 13430492100 20145738150 24174885780 30218607225 40291476300 60437214450 120874428900