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18376874234 = 217631856571
BaseRepresentation
bin10001000111010110…
…001101100011111010
31202102201022221021122
4101013112031203322
5300113434433414
612235304105242
71220252565545
oct210726154372
952381287248
1018376874234
1178802a2674
12368a465222
13196b335aa4
14c648d185c
157284eeb8e
hex44758d8fa

18376874234 has 16 divisors (see below), whose sum is σ = 29233089216. Its totient is φ = 8634225600.

The previous prime is 18376874227. The next prime is 18376874261. The reversal of 18376874234 is 43247867381.

It is a super-2 number, since 2×183768742342 (a number of 21 digits) contains 22 as substring.

It is a Curzon 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, 406832 + ... + 449739.

It is an arithmetic number, because the mean of its divisors is an integer number (1827068076).

Almost surely, 218376874234 is an apocalyptic number.

18376874234 is a deficient number, since it is larger than the sum of its proper divisors (10856214982).

18376874234 is a wasteful number, since it uses less digits than its factorization.

18376874234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 857221.

The product of its digits is 5419008, while the sum is 53.

The spelling of 18376874234 in words is "eighteen billion, three hundred seventy-six million, eight hundred seventy-four thousand, two hundred thirty-four".

Divisors: 1 2 17 34 631 1262 10727 21454 856571 1713142 14561707 29123414 540496301 1080992602 9188437117 18376874234