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80864588952 = 2333759878933
BaseRepresentation
bin100101101001111100…
…1111011010010011000
321201201120222202002000
41023103321323102120
52311102313321302
6101052040441000
75561620444050
oct1132371732230
9251646882060
1080864588952
1131326a52604
1213809479160
1378192b0604
143cb1918560
15218435331c
hex12d3e7b498

80864588952 has 128 divisors (see below), whose sum is σ = 256784601600. Its totient is φ = 23097723264.

The previous prime is 80864588941. The next prime is 80864589041. The reversal of 80864588952 is 25988546808.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 80864588952.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9047878 + ... + 9056810.

It is an arithmetic number, because the mean of its divisors is an integer number (2006129700).

Almost surely, 280864588952 is an apocalyptic number.

It is an amenable number.

80864588952 is an abundant number, since it is smaller than the sum of its proper divisors (175920012648).

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

80864588952 is a wasteful number, since it uses less digits than its factorization.

80864588952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14942 (or 14932 counting only the distinct ones).

The product of its (nonzero) digits is 44236800, while the sum is 63.

The spelling of 80864588952 in words is "eighty billion, eight hundred sixty-four million, five hundred eighty-eight thousand, nine hundred fifty-two".

Divisors: 1 2 3 4 6 7 8 9 12 14 18 21 24 27 28 36 42 54 56 63 72 84 108 126 168 189 216 252 378 504 756 1512 5987 8933 11974 17866 17961 23948 26799 35732 35922 41909 47896 53598 53883 62531 71464 71844 80397 83818 107196 107766 125062 125727 143688 160794 161649 167636 187593 214392 215532 241191 250124 251454 321588 323298 335272 375186 377181 431064 482382 500248 502908 562779 643176 646596 750372 754362 964764 1005816 1125558 1131543 1293192 1500744 1508724 1688337 1929528 2251116 2263086 3017448 3376674 4502232 4526172 6753348 9052344 13506696 53481871 106963742 160445613 213927484 320891226 374373097 427854968 481336839 641782452 748746194 962673678 1123119291 1283564904 1444010517 1497492388 1925347356 2246238582 2888021034 2994984776 3369357873 3850694712 4492477164 5776042068 6738715746 8984954328 10108073619 11552084136 13477431492 20216147238 26954862984 40432294476 80864588952