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18055838824 = 232256979853
BaseRepresentation
bin10000110100001101…
…100011110001101000
31201121100020122111021
4100310031203301220
5243434243320244
612143355142224
71206304045342
oct206415436150
951540218437
1018055838824
117726060a51
1235baa44974
1319199814ca
14c34004292
1570a238284
hex434363c68

18055838824 has 8 divisors (see below), whose sum is σ = 33854697810. Its totient is φ = 9027919408.

The previous prime is 18055838821. The next prime is 18055838837. The reversal of 18055838824 is 42883855081.

It can be written as a sum of positive squares in only one way, i.e., 18039176100 + 16662724 = 134310^2 + 4082^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (18055838821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1128489919 + ... + 1128489934.

Almost surely, 218055838824 is an apocalyptic number.

It is an amenable number.

18055838824 is a deficient number, since it is larger than the sum of its proper divisors (15798858986).

18055838824 is a wasteful number, since it uses less digits than its factorization.

18055838824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2256979859 (or 2256979855 counting only the distinct ones).

The product of its (nonzero) digits is 2457600, while the sum is 52.

The spelling of 18055838824 in words is "eighteen billion, fifty-five million, eight hundred thirty-eight thousand, eight hundred twenty-four".

Divisors: 1 2 4 8 2256979853 4513959706 9027919412 18055838824