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30145772574 = 2328272025109
BaseRepresentation
bin11100000100110100…
…111111110000011110
32212210220120220202100
4130010310333300132
5443214304210244
621503200305530
72115016560531
oct340464776036
985726526670
1030145772574
111186a559135
125a139122a6
132ac5643a68
14165d952a18
15bb6820b69
hex704d3fc1e

30145772574 has 24 divisors (see below), whose sum is σ = 65394852120. Its totient is φ = 10036435248.

The previous prime is 30145772567. The next prime is 30145772653. The reversal of 30145772574 is 47527754103.

30145772574 is a `hidden beast` number, since 3 + 0 + 1 + 4 + 5 + 7 + 72 + 574 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 997669 + ... + 1027440.

It is an arithmetic number, because the mean of its divisors is an integer number (2724785505).

Almost surely, 230145772574 is an apocalyptic number.

30145772574 is an abundant number, since it is smaller than the sum of its proper divisors (35249079546).

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

30145772574 is a wasteful number, since it uses less digits than its factorization.

30145772574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2025944 (or 2025941 counting only the distinct ones).

The product of its (nonzero) digits is 823200, while the sum is 45.

The spelling of 30145772574 in words is "thirty billion, one hundred forty-five million, seven hundred seventy-two thousand, five hundred seventy-four".

Divisors: 1 2 3 6 9 18 827 1654 2481 4962 7443 14886 2025109 4050218 6075327 12150654 18225981 36451962 1674765143 3349530286 5024295429 10048590858 15072886287 30145772574