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10648989948 = 223887415829
BaseRepresentation
bin10011110101011101…
…01011000011111100
31000111010221201222010
421322232223003330
5133302120134243
64520404451220
7524614630632
oct117256530374
930433851863
1010648989948
114575093843
1220923a9b10
1310092a97ac
1473041d352
15424d56433
hex27abab0fc

10648989948 has 12 divisors (see below), whose sum is σ = 24847643240. Its totient is φ = 3549663312.

The previous prime is 10648989929. The next prime is 10648989959. The reversal of 10648989948 is 84998984601.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×106489899482 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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, 443707903 + ... + 443707926.

Almost surely, 210648989948 is an apocalyptic number.

It is an amenable number.

10648989948 is an abundant number, since it is smaller than the sum of its proper divisors (14198653292).

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

10648989948 is a wasteful number, since it uses less digits than its factorization.

10648989948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 887415836 (or 887415834 counting only the distinct ones).

The product of its (nonzero) digits is 35831808, while the sum is 66.

The spelling of 10648989948 in words is "ten billion, six hundred forty-eight million, nine hundred eighty-nine thousand, nine hundred forty-eight".

Divisors: 1 2 3 4 6 12 887415829 1774831658 2662247487 3549663316 5324494974 10648989948