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27137828788 = 227969208171
BaseRepresentation
bin11001010001100010…
…100110011110110100
32121001021121112120221
4121101202212132310
5421034241010123
620244505504124
71650333511240
oct312142463664
977037545527
1027137828788
1110566662484
1253144a2044
13273640a875
14145627d420
15a8c70d25d
hex6518a67b4

27137828788 has 12 divisors (see below), whose sum is σ = 54275657632. Its totient is φ = 11630498040.

The previous prime is 27137828759. The next prime is 27137828789. The reversal of 27137828788 is 88782873172.

27137828788 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27137828789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 484604058 + ... + 484604113.

Almost surely, 227137828788 is an apocalyptic number.

27137828788 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

27137828788 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

27137828788 is a wasteful number, since it uses less digits than its factorization.

27137828788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 969208182 (or 969208180 counting only the distinct ones).

The product of its digits is 16859136, while the sum is 61.

The spelling of 27137828788 in words is "twenty-seven billion, one hundred thirty-seven million, eight hundred twenty-eight thousand, seven hundred eighty-eight".

Divisors: 1 2 4 7 14 28 969208171 1938416342 3876832684 6784457197 13568914394 27137828788