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13128623088 = 2437432274003
BaseRepresentation
bin11000011101000011…
…01110001111110000
31020212221211011011120
430032201232033300
5203341411414323
610010423542240
7643224312030
oct141641561760
936787734146
1013128623088
115627846929
1226648ba980
131312c27839
148c788b8c0
1551c8ac5e3
hex30e86e3f0

13128623088 has 160 divisors (see below), whose sum is σ = 39846782976. Its totient is φ = 3646750464.

The previous prime is 13128623083. The next prime is 13128623119. The reversal of 13128623088 is 88032682131.

13128623088 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13128623083) 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 31 ways as a sum of consecutive naturals, for example, 3277695 + ... + 3281697.

Almost surely, 213128623088 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13128623088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19923391488).

13128623088 is an abundant number, since it is smaller than the sum of its proper divisors (26718159888).

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

13128623088 is a wasteful number, since it uses less digits than its factorization.

13128623088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4291 (or 4285 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 42.

The spelling of 13128623088 in words is "thirteen billion, one hundred twenty-eight million, six hundred twenty-three thousand, eighty-eight".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 42 43 48 56 84 86 112 129 168 172 227 258 301 336 344 454 516 602 681 688 903 908 1032 1204 1362 1589 1806 1816 2064 2408 2724 3178 3612 3632 4003 4767 4816 5448 6356 7224 8006 9534 9761 10896 12009 12712 14448 16012 19068 19522 24018 25424 28021 29283 32024 38136 39044 48036 56042 58566 64048 68327 76272 78088 84063 96072 112084 117132 136654 156176 168126 172129 192144 204981 224168 234264 273308 336252 344258 409962 448336 468528 516387 546616 672504 688516 819924 908681 1032774 1093232 1204903 1345008 1377032 1639848 1817362 2065548 2409806 2726043 2754064 3279696 3614709 3634724 4131096 4819612 5452086 6360767 7229418 7269448 8262192 9639224 10904172 12721534 14458836 14538896 19082301 19278448 21808344 25443068 28917672 38164602 39073283 43616688 50886136 57835344 76329204 78146566 101772272 117219849 152658408 156293132 234439698 273512981 305316816 312586264 468879396 547025962 625172528 820538943 937758792 1094051924 1641077886 1875517584 2188103848 3282155772 4376207696 6564311544 13128623088