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80837862400 = 2105217772
BaseRepresentation
bin100101101001001001…
…1111110010000000000
321201122201200220010201
41023102103332100000
52311023443044100
6101045243534544
75561144331061
oct1132223762000
9251581626121
1080837862400
1131312958549
121380052a454
1378138b3599
143cac15c568
152181d2436a
hex12d24fe400

80837862400 has 99 divisors (see below), whose sum is σ = 200492835699. Its totient is φ = 32316948480.

The previous prime is 80837862383. The next prime is 80837862407. The reversal of 80837862400 is 426873808.

The square root of 80837862400 is 284320.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 1467196416 + 79370665984 = 38304^2 + 281728^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80837862407) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 45490312 + ... + 45492088.

Almost surely, 280837862400 is an apocalyptic number.

80837862400 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

80837862400 is the 284320-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80837862400

80837862400 is an abundant number, since it is smaller than the sum of its proper divisors (119654973299).

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

80837862400 is an frugal number, since it uses more digits than its factorization.

80837862400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3584 (or 1784 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 46.

The spelling of 80837862400 in words is "eighty billion, eight hundred thirty-seven million, eight hundred sixty-two thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 128 160 200 256 320 400 512 640 800 1024 1280 1600 1777 2560 3200 3554 5120 6400 7108 8885 12800 14216 17770 25600 28432 35540 44425 56864 71080 88850 113728 142160 177700 227456 284320 355400 454912 568640 710800 909824 1137280 1421600 1819648 2274560 2843200 3157729 4549120 5686400 6315458 9098240 11372800 12630916 15788645 22745600 25261832 31577290 45491200 50523664 63154580 78943225 101047328 126309160 157886450 202094656 252618320 315772900 404189312 505236640 631545800 808378624 1010473280 1263091600 1616757248 2020946560 2526183200 3233514496 4041893120 5052366400 8083786240 10104732800 16167572480 20209465600 40418931200 80837862400