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12988035536 = 247599193597
BaseRepresentation
bin11000001100010010…
…11011000111010000
31020112011021120022012
430012021123013100
5203044414114121
65544442402052
7636566323550
oct140611330720
936464246265
1012988035536
115565453373
122625800328
1312bca72c38
148b2d33160
1551038bc5b
hex30625b1d0

12988035536 has 40 divisors (see below), whose sum is σ = 28807382400. Its totient is φ = 5556979584.

The previous prime is 12988035509. The next prime is 12988035583. The reversal of 12988035536 is 63553088921.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29711 + ... + 163886.

It is an arithmetic number, because the mean of its divisors is an integer number (720184560).

Almost surely, 212988035536 is an apocalyptic number.

12988035536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12988035536 is an abundant number, since it is smaller than the sum of its proper divisors (15819346864).

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

12988035536 is a wasteful number, since it uses less digits than its factorization.

12988035536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194211 (or 194205 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 50.

The spelling of 12988035536 in words is "twelve billion, nine hundred eighty-eight million, thirty-five thousand, five hundred thirty-six".

Divisors: 1 2 4 7 8 14 16 28 56 112 599 1198 2396 4193 4792 8386 9584 16772 33544 67088 193597 387194 774388 1355179 1548776 2710358 3097552 5420716 10841432 21682864 115964603 231929206 463858412 811752221 927716824 1623504442 1855433648 3247008884 6494017768 12988035536