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18740010998 = 221144407609
BaseRepresentation
bin10001011100111111…
…011101111111110110
31210101000122012021102
4101130333131333312
5301334420322443
612335315250102
71232252315402
oct213477357766
953330565242
1018740010998
117a4727a6a5
12376bba9932
1319c863b507
14c9ac1c102
1574a330cb8
hex45cfddff6

18740010998 has 8 divisors (see below), whose sum is σ = 28243239960. Its totient is φ = 9325597680.

The previous prime is 18740010977. The next prime is 18740011009. The reversal of 18740010998 is 89901004781.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22203383 + ... + 22204226.

It is an arithmetic number, because the mean of its divisors is an integer number (3530404995).

Almost surely, 218740010998 is an apocalyptic number.

18740010998 is a deficient number, since it is larger than the sum of its proper divisors (9503228962).

18740010998 is a wasteful number, since it uses less digits than its factorization.

18740010998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44407822.

The product of its (nonzero) digits is 145152, while the sum is 47.

The spelling of 18740010998 in words is "eighteen billion, seven hundred forty million, ten thousand, nine hundred ninety-eight".

Divisors: 1 2 211 422 44407609 88815218 9370005499 18740010998