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120664628 = 2274309451
BaseRepresentation
bin1110011000100…
…11001000110100
322102001101202022
413030103020310
5221342232003
615550132312
72663426630
oct714231064
9272041668
10120664628
1162126137
12344b1098
131bcca5b6
141204ddc0
15a8d7738
hex7313234

120664628 has 12 divisors (see below), whose sum is σ = 241329312. Its totient is φ = 51713400.

The previous prime is 120664627. The next prime is 120664633. The reversal of 120664628 is 826466021.

120664628 is an admirable number.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120664627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2154698 + ... + 2154753.

It is an arithmetic number, because the mean of its divisors is an integer number (20110776).

Almost surely, 2120664628 is an apocalyptic number.

It is an amenable number.

120664628 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

120664628 is a wasteful number, since it uses less digits than its factorization.

120664628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4309462 (or 4309460 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 120664628 is about 10984.7452405597. The cubic root of 120664628 is about 494.1513575118.

The spelling of 120664628 in words is "one hundred twenty million, six hundred sixty-four thousand, six hundred twenty-eight".

Divisors: 1 2 4 7 14 28 4309451 8618902 17237804 30166157 60332314 120664628