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30120726284 = 22111056764783
BaseRepresentation
bin11100000011010101…
…011100111100001100
32212202011110102200222
4130003111130330030
5443141401220114
621500503410512
72114263643345
oct340325347414
985664412628
1030120726284
1111857401520
125a07453a38
132ac03b477c
14165a4b30cc
15bb452498e
hex70355cf0c

30120726284 has 24 divisors (see below), whose sum is σ = 57509534208. Its totient is φ = 13689732240.

The previous prime is 30120726283. The next prime is 30120726289. The reversal of 30120726284 is 48262702103.

It is not an unprimeable number, because it can be changed into a prime (30120726283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 432557 + ... + 497339.

It is an arithmetic number, because the mean of its divisors is an integer number (2396230592).

Almost surely, 230120726284 is an apocalyptic number.

It is an amenable number.

30120726284 is a deficient number, since it is larger than the sum of its proper divisors (27388807924).

30120726284 is a wasteful number, since it uses less digits than its factorization.

30120726284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75365 (or 75363 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 35.

The spelling of 30120726284 in words is "thirty billion, one hundred twenty million, seven hundred twenty-six thousand, two hundred eighty-four".

Divisors: 1 2 4 11 22 44 10567 21134 42268 64783 116237 129566 232474 259132 464948 712613 1425226 2850452 684561961 1369123922 2738247844 7530181571 15060363142 30120726284