Search a number
-
+
101312103100 = 225213216735897
BaseRepresentation
bin101111001011010101…
…1000000001010111100
3100200111121121002022211
41132112223000022330
53124441344244400
6114313033550204
710214415444655
oct1362653001274
9320447532284
10101312103100
1139a6a04a62a
1217775275364
1397275c4600
144c9141252c
15297e51adba
hex1796ac02bc

101312103100 has 108 divisors (see below), whose sum is σ = 239491640304. Its totient is φ = 37182512640.

The previous prime is 101312103071. The next prime is 101312103119. The reversal of 101312103100 is 1301213101.

It is a super-2 number, since 2×1013121031002 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2804352 + ... + 2840248.

It is an arithmetic number, because the mean of its divisors is an integer number (2217515188).

Almost surely, 2101312103100 is an apocalyptic number.

101312103100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 101312103100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119745820152).

101312103100 is an abundant number, since it is smaller than the sum of its proper divisors (138179537204).

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

101312103100 is a wasteful number, since it uses less digits than its factorization.

101312103100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36104 (or 36084 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 101312103100 its reverse (1301213101), we get a palindrome (102613316201).

The spelling of 101312103100 in words is "one hundred one billion, three hundred twelve million, one hundred three thousand, one hundred".

Divisors: 1 2 4 5 10 13 20 25 26 50 52 65 100 130 167 169 260 325 334 338 650 668 676 835 845 1300 1670 1690 2171 3340 3380 4175 4225 4342 8350 8450 8684 10855 16700 16900 21710 28223 35897 43420 54275 56446 71794 108550 112892 141115 143588 179485 217100 282230 358970 466661 564460 705575 717940 897425 933322 1411150 1794850 1866644 2333305 2822300 3589700 4666610 5994799 6066593 9333220 11666525 11989598 12133186 23333050 23979196 24266372 29973995 30332965 46666100 59947990 60665930 77932387 119895980 121331860 149869975 151664825 155864774 299739950 303329650 311729548 389661935 599479900 606659300 779323870 1013121031 1558647740 1948309675 2026242062 3896619350 4052484124 5065605155 7793238700 10131210310 20262420620 25328025775 50656051550 101312103100