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30572055708 = 22314947170447
BaseRepresentation
bin11100011110001111…
…001000110010011100
32220220121201100021120
4130132033020302130
51000102421240313
622013345130540
72131414120515
oct343617106234
986817640246
1030572055708
1111a69145a47
125b12629a50
132b62a585bc
1416a03d9a0c
15bdde76d23
hex71e3c8c9c

30572055708 has 24 divisors (see below), whose sum is σ = 71339987712. Its totient is φ = 10189943664.

The previous prime is 30572055707. The next prime is 30572055781. The reversal of 30572055708 is 80755027503.

It is a self number, because there is not a number n which added to its sum of digits gives 30572055708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30572055707) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94141 + ... + 264587.

It is an arithmetic number, because the mean of its divisors is an integer number (2972499488).

Almost surely, 230572055708 is an apocalyptic number.

It is an amenable number.

30572055708 is an abundant number, since it is smaller than the sum of its proper divisors (40767932004).

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

30572055708 is a wasteful number, since it uses less digits than its factorization.

30572055708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185401 (or 185399 counting only the distinct ones).

The product of its (nonzero) digits is 294000, while the sum is 42.

The spelling of 30572055708 in words is "thirty billion, five hundred seventy-two million, fifty-five thousand, seven hundred eight".

Divisors: 1 2 3 4 6 12 14947 29894 44841 59788 89682 170447 179364 340894 511341 681788 1022682 2045364 2547671309 5095342618 7643013927 10190685236 15286027854 30572055708