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18070827 = 353891277
BaseRepresentation
bin100010011101…
…1110100101011
31021000002111220
41010323310223
514111231302
61443153123
7306412425
oct104736453
937002456
1018070827
11a222975
1260757a3
1339892c8
142585815
1518be4bc
hex113bd2b

18070827 has 16 divisors (see below), whose sum is σ = 24844320. Its totient is φ = 11677952.

The previous prime is 18070817. The next prime is 18070831. The reversal of 18070827 is 72807081.

It is a cyclic number.

It is not a de Polignac number, because 18070827 - 27 = 18070699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18070817) 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, 13513 + ... + 14789.

It is an arithmetic number, because the mean of its divisors is an integer number (1552770).

Almost surely, 218070827 is an apocalyptic number.

18070827 is a deficient number, since it is larger than the sum of its proper divisors (6773493).

18070827 is a wasteful number, since it uses less digits than its factorization.

18070827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1422.

The product of its (nonzero) digits is 6272, while the sum is 33.

The square root of 18070827 is about 4250.9795341780. The cubic root of 18070827 is about 262.4174289047.

The spelling of 18070827 in words is "eighteen million, seventy thousand, eight hundred twenty-seven".

Divisors: 1 3 53 89 159 267 1277 3831 4717 14151 67681 113653 203043 340959 6023609 18070827