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80913360 = 24351130649
BaseRepresentation
bin1001101001010…
…10001111010000
312122020211021010
410310222033100
5131203211420
612010130520
72001516003
oct464521720
9178224233
1080913360
1141745450
1223120a40
13139c0038
14aa6353a
1571844e0
hex4d2a3d0

80913360 has 80 divisors (see below), whose sum is σ = 273643200. Its totient is φ = 19614720.

The previous prime is 80913359. The next prime is 80913373. The reversal of 80913360 is 6331908.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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, 12685 + ... + 17964.

It is an arithmetic number, because the mean of its divisors is an integer number (3420540).

Almost surely, 280913360 is an apocalyptic number.

80913360 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80913360 is an abundant number, since it is smaller than the sum of its proper divisors (192729840).

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

80913360 is a wasteful number, since it uses less digits than its factorization.

80913360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30676 (or 30670 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 80913360 is about 8995.1853788568. The cubic root of 80913360 is about 432.5205487692.

The spelling of 80913360 in words is "eighty million, nine hundred thirteen thousand, three hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 11 12 15 16 20 22 24 30 33 40 44 48 55 60 66 80 88 110 120 132 165 176 220 240 264 330 440 528 660 880 1320 2640 30649 61298 91947 122596 153245 183894 245192 306490 337139 367788 459735 490384 612980 674278 735576 919470 1011417 1225960 1348556 1471152 1685695 1838940 2022834 2451920 2697112 3371390 3677880 4045668 5057085 5394224 6742780 7355760 8091336 10114170 13485560 16182672 20228340 26971120 40456680 80913360