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27925012 = 2211361781
BaseRepresentation
bin110101010000…
…1101000010100
31221112201220201
41222201220110
524122100022
62434310244
7456234013
oct152415024
957481821
1027925012
1114843525
129428384
135a2969b
1439cca7a
1526b9127
hex1aa1a14

27925012 has 12 divisors (see below), whose sum is σ = 49302036. Its totient is φ = 13838720.

The previous prime is 27924983. The next prime is 27925019. The reversal of 27925012 is 21052972.

It can be written as a sum of positive squares in 2 ways, for example, as 404496 + 27520516 = 636^2 + 5246^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27925019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30439 + ... + 31342.

It is an arithmetic number, because the mean of its divisors is an integer number (4108503).

Almost surely, 227925012 is an apocalyptic number.

It is an amenable number.

27925012 is a deficient number, since it is larger than the sum of its proper divisors (21377024).

27925012 is a wasteful number, since it uses less digits than its factorization.

27925012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61898 (or 61896 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 27925012 is about 5284.4121716611. The cubic root of 27925012 is about 303.3875741938.

Adding to 27925012 its reverse (21052972), we get a palindrome (48977984).

The spelling of 27925012 in words is "twenty-seven million, nine hundred twenty-five thousand, twelve".

Divisors: 1 2 4 113 226 452 61781 123562 247124 6981253 13962506 27925012