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120930628 = 227213311531
BaseRepresentation
bin1110011010101…
…00000101000100
322102112220122011
413031110011010
5221424240003
615555544004
72665615300
oct715240504
9272486564
10120930628
1162297a75
12345bb004
131c0916b0
14120bcd00
15a93b46d
hex7354144

120930628 has 72 divisors (see below), whose sum is σ = 273848064. Its totient is φ = 46267200.

The previous prime is 120930587. The next prime is 120930631. The reversal of 120930628 is 826039021.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a self number, because there is not a number n which added to its sum of digits gives 120930628.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78223 + ... + 79753.

Almost surely, 2120930628 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120930628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136924032).

120930628 is an abundant number, since it is smaller than the sum of its proper divisors (152917436).

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

120930628 is a wasteful number, since it uses less digits than its factorization.

120930628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1593 (or 1584 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 120930628 is about 10996.8462751827. The cubic root of 120930628 is about 494.5142028450.

Adding to 120930628 its reverse (826039021), we get a palindrome (946969649).

The spelling of 120930628 in words is "one hundred twenty million, nine hundred thirty thousand, six hundred twenty-eight".

Divisors: 1 2 4 7 13 14 26 28 31 49 52 62 91 98 124 182 196 217 364 403 434 637 806 868 1274 1519 1531 1612 2548 2821 3038 3062 5642 6076 6124 10717 11284 19747 19903 21434 39494 39806 42868 47461 75019 78988 79612 94922 139321 150038 189844 278642 300076 332227 557284 616993 664454 975247 1233986 1328908 1950494 2325589 2467972 3900988 4318951 4651178 8637902 9302356 17275804 30232657 60465314 120930628