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18937914662 = 223894625773
BaseRepresentation
bin10001101000110010…
…011010010100100110
31210212211000202001202
4101220302122110212
5302241101232122
612411105122502
71240204422122
oct215062322446
953784022052
1018937914662
118038a60647
123806329432
131a2a640584
14cb9216582
1575c8c3e92
hex468c9a526

18937914662 has 16 divisors (see below), whose sum is σ = 29975015520. Its totient is φ = 8955494592.

The previous prime is 18937914661. The next prime is 18937914679. The reversal of 18937914662 is 26641973981.

It is a super-2 number, since 2×189379146622 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18937914598 and 18937914607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18937914661) 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, 2308793 + ... + 2316980.

It is an arithmetic number, because the mean of its divisors is an integer number (1873438470).

Almost surely, 218937914662 is an apocalyptic number.

18937914662 is a deficient number, since it is larger than the sum of its proper divisors (11037100858).

18937914662 is a wasteful number, since it uses less digits than its factorization.

18937914662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4625887.

The product of its digits is 3919104, while the sum is 56.

The spelling of 18937914662 in words is "eighteen billion, nine hundred thirty-seven million, nine hundred fourteen thousand, six hundred sixty-two".

Divisors: 1 2 23 46 89 178 2047 4094 4625773 9251546 106392779 212785558 411693797 823387594 9468957331 18937914662