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18075451234 = 2269331101503
BaseRepresentation
bin10000110101011000…
…010111111101100010
31201122201011001122211
4100311120113331202
5244004303414414
612145335352334
71206632541361
oct206530277542
951581131584
1018075451234
117736137055
1236055226aa
131920a5a399
14c3686b7d8
1570bd0e3c4
hex435617f62

18075451234 has 16 divisors (see below), whose sum is σ = 27296455680. Its totient is φ = 8976836880.

The previous prime is 18075451231. The next prime is 18075451249. The reversal of 18075451234 is 43215457081.

It is not an unprimeable number, because it can be changed into a prime (18075451231) 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, 127327 + ... + 228829.

It is an arithmetic number, because the mean of its divisors is an integer number (1706028480).

Almost surely, 218075451234 is an apocalyptic number.

18075451234 is a deficient number, since it is larger than the sum of its proper divisors (9221004446).

18075451234 is a wasteful number, since it uses less digits than its factorization.

18075451234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102105.

The product of its (nonzero) digits is 134400, while the sum is 40.

The spelling of 18075451234 in words is "eighteen billion, seventy-five million, four hundred fifty-one thousand, two hundred thirty-four".

Divisors: 1 2 269 331 538 662 89039 101503 178078 203006 27304307 33597493 54608614 67194986 9037725617 18075451234