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28607319244 = 2271021689973
BaseRepresentation
bin11010101001001000…
…010000110011001100
32201211200201101112101
4122221020100303030
5432041433203434
621050402044444
72031626126050
oct325110206314
981750641471
1028607319244
11111500a43a9
125664649724
13290b9a9c4a
1415554bdc60
15b2672cb14
hex6a9210ccc

28607319244 has 12 divisors (see below), whose sum is σ = 57214638544. Its totient is φ = 12260279664.

The previous prime is 28607319229. The next prime is 28607319253. The reversal of 28607319244 is 44291370682.

It is a happy number.

28607319244 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 28607319194 and 28607319203.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 510844959 + ... + 510845014.

Almost surely, 228607319244 is an apocalyptic number.

It is an amenable number.

28607319244 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.

28607319244 is a wasteful number, since it uses less digits than its factorization.

28607319244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021689984 (or 1021689982 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 46.

The spelling of 28607319244 in words is "twenty-eight billion, six hundred seven million, three hundred nineteen thousand, two hundred forty-four".

Divisors: 1 2 4 7 14 28 1021689973 2043379946 4086759892 7151829811 14303659622 28607319244