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18073927196 = 22131720445619
BaseRepresentation
bin10000110101010010…
…100011111000011100
31201122121021122001222
4100311102203320130
5244003411132241
612145242552512
71206613563203
oct206522437034
951577248058
1018073927196
117735296016
123604b08738
1319206457a0
14c3659223a
1570bb0ca4b
hex4354a3e1c

18073927196 has 24 divisors (see below), whose sum is σ = 36066073680. Its totient is φ = 7851117312.

The previous prime is 18073927187. The next prime is 18073927217. The reversal of 18073927196 is 69172937081.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10221926 + ... + 10223693.

It is an arithmetic number, because the mean of its divisors is an integer number (1502753070).

Almost surely, 218073927196 is an apocalyptic number.

It is an amenable number.

18073927196 is a deficient number, since it is larger than the sum of its proper divisors (17992146484).

18073927196 is a wasteful number, since it uses less digits than its factorization.

18073927196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20445653 (or 20445651 counting only the distinct ones).

The product of its (nonzero) digits is 1143072, while the sum is 53.

The spelling of 18073927196 in words is "eighteen billion, seventy-three million, nine hundred twenty-seven thousand, one hundred ninety-six".

Divisors: 1 2 4 13 17 26 34 52 68 221 442 884 20445619 40891238 81782476 265793047 347575523 531586094 695151046 1063172188 1390302092 4518481799 9036963598 18073927196