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27257132 = 2272139067
BaseRepresentation
bin110011111111…
…0100100101100
31220021210202102
41213332210230
523434212012
62412114232
7450452600
oct147764454
956253672
1027257132
1114427761
129165978
1358546a6
143897500
1525d62c2
hex19fe92c

27257132 has 18 divisors (see below), whose sum is σ = 55488132. Its totient is φ = 11681544.

The previous prime is 27257119. The next prime is 27257143. The reversal of 27257132 is 23175272.

It is a junction number, because it is equal to n+sod(n) for n = 27257095 and 27257104.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 69338 + ... + 69729.

It is an arithmetic number, because the mean of its divisors is an integer number (3082674).

Almost surely, 227257132 is an apocalyptic number.

It is an amenable number.

27257132 is an abundant number, since it is smaller than the sum of its proper divisors (28231000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27257132 is a wasteful number, since it uses less digits than its factorization.

27257132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139085 (or 139076 counting only the distinct ones).

The product of its digits is 5880, while the sum is 29.

The square root of 27257132 is about 5220.8363314703. The cubic root of 27257132 is about 300.9493334586.

The spelling of 27257132 in words is "twenty-seven million, two hundred fifty-seven thousand, one hundred thirty-two".

Divisors: 1 2 4 7 14 28 49 98 196 139067 278134 556268 973469 1946938 3893876 6814283 13628566 27257132