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18370740195 = 335136079557
BaseRepresentation
bin10001000110111110…
…110011111111100011
31202102021210021222000
4101012332303333203
5300110402141240
612234524415043
71220146500213
oct210676637743
952367707860
1018370740195
117877893015
1236883a7483
131969c98a92
14c63b76243
15727bdc430
hex446fb3fe3

18370740195 has 16 divisors (see below), whose sum is σ = 32659093920. Its totient is φ = 9797728032.

The previous prime is 18370740187. The next prime is 18370740239. The reversal of 18370740195 is 59104707381.

It is not a de Polignac number, because 18370740195 - 23 = 18370740187 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 18370740195.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68039644 + ... + 68039913.

It is an arithmetic number, because the mean of its divisors is an integer number (2041193370).

Almost surely, 218370740195 is an apocalyptic number.

18370740195 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18370740195 is a deficient number, since it is larger than the sum of its proper divisors (14288353725).

18370740195 is a wasteful number, since it uses less digits than its factorization.

18370740195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136079571 (or 136079565 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 45.

The spelling of 18370740195 in words is "eighteen billion, three hundred seventy million, seven hundred forty thousand, one hundred ninety-five".

Divisors: 1 3 5 9 15 27 45 135 136079557 408238671 680397785 1224716013 2041193355 3674148039 6123580065 18370740195