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18094308407 = 715134749333
BaseRepresentation
bin10000110110100000…
…010011110000110111
31201201000122002211122
4100312200103300313
5244024120332112
612151251454155
71210252040510
oct206640236067
951630562748
1018094308407
11774584679a
12360b8b735b
131924930586
14c39179a07
1570d7d6872
hex436813c37

18094308407 has 16 divisors (see below), whose sum is σ = 20876570112. Its totient is φ = 15361984800.

The previous prime is 18094308359. The next prime is 18094308413. The reversal of 18094308407 is 70480349081.

It is a cyclic number.

It is not a de Polignac number, because 18094308407 - 212 = 18094304311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18094308497) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 342113 + ... + 391445.

It is an arithmetic number, because the mean of its divisors is an integer number (1304785632).

Almost surely, 218094308407 is an apocalyptic number.

18094308407 is a deficient number, since it is larger than the sum of its proper divisors (2782261705).

18094308407 is a wasteful number, since it uses less digits than its factorization.

18094308407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49838.

The product of its (nonzero) digits is 193536, while the sum is 44.

The spelling of 18094308407 in words is "eighteen billion, ninety-four million, three hundred eight thousand, four hundred seven".

Divisors: 1 7 151 347 1057 2429 49333 52397 345331 366779 7449283 17118551 52144981 119829857 2584901201 18094308407