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120627990 = 23257191473
BaseRepresentation
bin1110011000010…
…10001100010110
322101222112111100
413030022030112
5221340043430
615545250530
72663215050
oct714121426
9271875440
10120627990
116210065a
1234493a46
131bcb6a12
14120408d0
15a8cb960
hex730a316

120627990 has 48 divisors (see below), whose sum is σ = 358439328. Its totient is φ = 27571968.

The previous prime is 120627989. The next prime is 120628033. The reversal of 120627990 is 99726021.

120627990 is a `hidden beast` number, since 1 + 20 + 627 + 9 + 9 + 0 = 666.

It is a super-2 number, since 2×1206279902 = 29102223942880200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 95107 + ... + 96366.

It is an arithmetic number, because the mean of its divisors is an integer number (7467486).

Almost surely, 2120627990 is an apocalyptic number.

120627990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120627990 is an abundant number, since it is smaller than the sum of its proper divisors (237811338).

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

120627990 is a wasteful number, since it uses less digits than its factorization.

120627990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191493 (or 191490 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 120627990 is about 10983.0774375855. The cubic root of 120627990 is about 494.1013385724.

The spelling of 120627990 in words is "one hundred twenty million, six hundred twenty-seven thousand, nine hundred ninety".

Divisors: 1 2 3 5 6 7 9 10 14 15 18 21 30 35 42 45 63 70 90 105 126 210 315 630 191473 382946 574419 957365 1148838 1340311 1723257 1914730 2680622 2872095 3446514 4020933 5744190 6701555 8041866 8616285 12062799 13403110 17232570 20104665 24125598 40209330 60313995 120627990