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80937773320 = 2353635355661
BaseRepresentation
bin100101101100001000…
…1000110100100001000
321201220200200220011011
41023120101012210020
52311230032221240
6101103213213304
75563466502415
oct1133021064410
9251820626134
1080937773320
1131364299058
1213829a91234
13782b4c5681
143cbb52910c
15218a9ac6ea
hex12d8446908

80937773320 has 32 divisors (see below), whose sum is σ = 182118271320. Its totient is φ = 32373637120.

The previous prime is 80937773299. The next prime is 80937773327. The reversal of 80937773320 is 2337773908.

It can be written as a sum of positive squares in 4 ways, for example, as 48068808516 + 32868964804 = 219246^2 + 181298^2 .

It is not an unprimeable number, because it can be changed into a prime (80937773327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1426290 + ... + 1481950.

Almost surely, 280937773320 is an apocalyptic number.

It is an amenable number.

80937773320 is an abundant number, since it is smaller than the sum of its proper divisors (101180498000).

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

80937773320 is a wasteful number, since it uses less digits than its factorization.

80937773320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92025 (or 92021 counting only the distinct ones).

The product of its (nonzero) digits is 1333584, while the sum is 49.

The spelling of 80937773320 in words is "eighty billion, nine hundred thirty-seven million, seven hundred seventy-three thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 36353 55661 72706 111322 145412 181765 222644 278305 290824 363530 445288 556610 727060 1113220 1454120 2226440 2023444333 4046888666 8093777332 10117221665 16187554664 20234443330 40468886660 80937773320