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30945754913 = 2967711012221
BaseRepresentation
bin11100110100100000…
…101011111100100001
32221212122220020012212
4130310200223330201
51001334103124123
622114414531505
72143602401543
oct346440537441
987778806185
1030945754913
1112140087767
125bb7806b95
132bc22bb8a8
1416d7cb5693
15c11b92878
hex73482bf21

30945754913 has 32 divisors (see below), whose sum is σ = 33289470720. Its totient is φ = 28717920000.

The previous prime is 30945754901. The next prime is 30945754933. The reversal of 30945754913 is 31945754903.

It is a cyclic number.

It is not a de Polignac number, because 30945754913 - 28 = 30945754657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30945754933) 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 31 ways as a sum of consecutive naturals, for example, 13932143 + ... + 13934363.

It is an arithmetic number, because the mean of its divisors is an integer number (1040295960).

Almost surely, 230945754913 is an apocalyptic number.

It is an amenable number.

30945754913 is a deficient number, since it is larger than the sum of its proper divisors (2343715807).

30945754913 is a wasteful number, since it uses less digits than its factorization.

30945754913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2489.

The product of its (nonzero) digits is 2041200, while the sum is 50.

The spelling of 30945754913 in words is "thirty billion, nine hundred forty-five million, seven hundred fifty-four thousand, nine hundred thirteen".

Divisors: 1 29 67 71 101 1943 2059 2221 2929 4757 6767 7171 64409 137953 148807 157691 196243 207959 224321 480457 4315403 4573039 6505309 10565297 13933253 15029507 15926791 306393613 435855703 461876939 1067094997 30945754913