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27074985 = 357257857
BaseRepresentation
bin110011101001…
…0000110101001
31212221112220020
41213102012221
523412344420
62404151053
7446063550
oct147220651
955845806
1027074985
1114312923
129098489
1357bc802
14384ad97
15259c340
hex19d21a9

27074985 has 16 divisors (see below), whose sum is σ = 49508736. Its totient is φ = 12377088.

The previous prime is 27074977. The next prime is 27074987. The reversal of 27074985 is 58947072.

It is not a de Polignac number, because 27074985 - 23 = 27074977 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (27074987) 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, 128824 + ... + 129033.

It is an arithmetic number, because the mean of its divisors is an integer number (3094296).

Almost surely, 227074985 is an apocalyptic number.

It is an amenable number.

27074985 is a deficient number, since it is larger than the sum of its proper divisors (22433751).

27074985 is a wasteful number, since it uses less digits than its factorization.

27074985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257872.

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 27074985 is about 5203.3628549237. The cubic root of 27074985 is about 300.2774655194.

The spelling of 27074985 in words is "twenty-seven million, seventy-four thousand, nine hundred eighty-five".

Divisors: 1 3 5 7 15 21 35 105 257857 773571 1289285 1804999 3867855 5414997 9024995 27074985