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1372918018 = 23143975309
BaseRepresentation
bin101000111010101…
…0001000100000010
310112200101110110111
41101311101010002
510302431334033
6344122221534
746010416303
oct12165210402
93480343414
101372918018
11644a8169a
123239548aa
1318b588a34
14d04a27aa
15807e57cd
hex51d51102

1372918018 has 32 divisors (see below), whose sum is σ = 2198085120. Its totient is φ = 642055680.

The previous prime is 1372917991. The next prime is 1372918051. The reversal of 1372918018 is 8108192731.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 255948 + ... + 261256.

It is an arithmetic number, because the mean of its divisors is an integer number (68690160).

Almost surely, 21372918018 is an apocalyptic number.

1372918018 is a deficient number, since it is larger than the sum of its proper divisors (825167102).

1372918018 is a wasteful number, since it uses less digits than its factorization.

1372918018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5482.

The product of its (nonzero) digits is 24192, while the sum is 40.

The square root of 1372918018 is about 37052.9083608831. The cubic root of 1372918018 is about 1111.4285149214.

The spelling of 1372918018 in words is "one billion, three hundred seventy-two million, nine hundred eighteen thousand, eighteen".

Divisors: 1 2 31 43 62 86 97 194 1333 2666 3007 4171 5309 6014 8342 10618 129301 164579 228287 258602 329158 456574 514973 1029946 7076897 14153794 15964163 22143839 31928326 44287678 686459009 1372918018