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80895629472 = 2537709169789
BaseRepresentation
bin100101101010111000…
…0010101100010100000
321201210202101202122220
41023111300111202200
52311133240120342
6101055110031040
75562445335150
oct1132560254240
9251722352586
1080895629472
1131342523829
1213817948480
13782285b098
143cb5ab8760
152186e355ec
hex12d5c158a0

80895629472 has 96 divisors (see below), whose sum is σ = 243030614400. Its totient is φ = 23080301568.

The previous prime is 80895629449. The next prime is 80895629491. The reversal of 80895629472 is 27492659808.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×808956294722 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 391554 + ... + 561342.

It is an arithmetic number, because the mean of its divisors is an integer number (2531568900).

Almost surely, 280895629472 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 80895629472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121515307200).

80895629472 is an abundant number, since it is smaller than the sum of its proper divisors (162134984928).

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

80895629472 is a wasteful number, since it uses less digits than its factorization.

80895629472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170518 (or 170510 counting only the distinct ones).

The product of its (nonzero) digits is 17418240, while the sum is 60.

The spelling of 80895629472 in words is "eighty billion, eight hundred ninety-five million, six hundred twenty-nine thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 84 96 112 168 224 336 672 709 1418 2127 2836 4254 4963 5672 8508 9926 11344 14889 17016 19852 22688 29778 34032 39704 59556 68064 79408 119112 158816 169789 238224 339578 476448 509367 679156 1018734 1188523 1358312 2037468 2377046 2716624 3565569 4074936 4754092 5433248 7131138 8149872 9508184 14262276 16299744 19016368 28524552 38032736 57049104 114098208 120380401 240760802 361141203 481521604 722282406 842662807 963043208 1444564812 1685325614 1926086416 2527988421 2889129624 3370651228 3852172832 5055976842 5778259248 6741302456 10111953684 11556518496 13482604912 20223907368 26965209824 40447814736 80895629472