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120315120 = 24351737797
BaseRepresentation
bin1110010101111…
…01110011110000
322101101122022120
413022331303300
5221300040440
615534434240
72660442642
oct712756360
9271348276
10120315120
1161a07592
1234362980
131bc074a3
1411d9c892
15a868dd0
hex72bdcf0

120315120 has 160 divisors (see below), whose sum is σ = 406099008. Its totient is φ = 29343744.

The previous prime is 120315089. The next prime is 120315127. The reversal of 120315120 is 21513021.

It is a super-2 number, since 2×1203151202 = 28951456201228800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 120315120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120315127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 150562 + ... + 151358.

Almost surely, 2120315120 is an apocalyptic number.

120315120 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 120315120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203049504).

120315120 is an abundant number, since it is smaller than the sum of its proper divisors (285783888).

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

120315120 is a wasteful number, since it uses less digits than its factorization.

120315120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867 (or 861 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 120315120 is about 10968.8249142741. The cubic root of 120315120 is about 493.6737890171.

Adding to 120315120 its reverse (21513021), we get a palindrome (141828141).

The spelling of 120315120 in words is "one hundred twenty million, three hundred fifteen thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 17 20 24 30 34 37 40 48 51 60 68 74 80 85 102 111 120 136 148 170 185 204 222 240 255 272 296 340 370 408 444 510 555 592 629 680 740 797 816 888 1020 1110 1258 1360 1480 1594 1776 1887 2040 2220 2391 2516 2960 3145 3188 3774 3985 4080 4440 4782 5032 6290 6376 7548 7970 8880 9435 9564 10064 11955 12580 12752 13549 15096 15940 18870 19128 23910 25160 27098 29489 30192 31880 37740 38256 40647 47820 50320 54196 58978 63760 67745 75480 81294 88467 95640 108392 117956 135490 147445 150960 162588 176934 191280 203235 216784 235912 270980 294890 325176 353868 406470 442335 471824 501313 541960 589780 650352 707736 812940 884670 1002626 1083920 1179560 1415472 1503939 1625880 1769340 2005252 2359120 2506565 3007878 3251760 3538680 4010504 5013130 6015756 7077360 7519695 8021008 10026260 12031512 15039390 20052520 24063024 30078780 40105040 60157560 120315120