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18629107 = 729163563
BaseRepresentation
bin100011100010…
…0000111110011
31022001110022221
41013010013303
514232112412
61503141511
7314226160
oct107040763
938043287
1018629107
11a574362
1262a4897
133b23453
14268d067
15197eb07
hex11c41f3

18629107 has 16 divisors (see below), whose sum is σ = 22199040. Its totient is φ = 15295392.

The previous prime is 18629087. The next prime is 18629111. The reversal of 18629107 is 70192681.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2k-18629107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18629137) 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, 32808 + ... + 33370.

It is an arithmetic number, because the mean of its divisors is an integer number (1387440).

Almost surely, 218629107 is an apocalyptic number.

18629107 is a deficient number, since it is larger than the sum of its proper divisors (3569933).

18629107 is a wasteful number, since it uses less digits than its factorization.

18629107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762.

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 18629107 is about 4316.1449234241. The cubic root of 18629107 is about 265.0924419391.

The spelling of 18629107 in words is "eighteen million, six hundred twenty-nine thousand, one hundred seven".

Divisors: 1 7 29 163 203 563 1141 3941 4727 16327 33089 91769 114289 642383 2661301 18629107