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80738880 = 2635312713
BaseRepresentation
bin1001100111111…
…11101001000000
312121220221220220
410303333221000
5131132121010
612002303040
72000161215
oct463775100
9177827826
1080738880
1141636352
1223057a80
131395b7b1
14aa19b0c
15714c970
hex4cffa40

80738880 has 112 divisors (see below), whose sum is σ = 264712704. Its totient is φ = 20828160.

The previous prime is 80738873. The next prime is 80738893. The reversal of 80738880 is 8883708.

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, 28404 + ... + 31116.

Almost surely, 280738880 is an apocalyptic number.

80738880 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80738880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132356352).

80738880 is an abundant number, since it is smaller than the sum of its proper divisors (183973824).

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

80738880 is a wasteful number, since it uses less digits than its factorization.

80738880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2764 (or 2754 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 42.

The square root of 80738880 is about 8985.4816231519. The cubic root of 80738880 is about 432.2094320594.

It can be divided in two parts, 80738 and 880, that added together give a palindrome (81618).

The spelling of 80738880 in words is "eighty million, seven hundred thirty-eight thousand, eight hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 31 32 40 48 60 62 64 80 93 96 120 124 155 160 186 192 240 248 310 320 372 465 480 496 620 744 930 960 992 1240 1488 1860 1984 2480 2713 2976 3720 4960 5426 5952 7440 8139 9920 10852 13565 14880 16278 21704 27130 29760 32556 40695 43408 54260 65112 81390 84103 86816 108520 130224 162780 168206 173632 217040 252309 260448 325560 336412 420515 434080 504618 520896 651120 672824 841030 868160 1009236 1261545 1302240 1345648 1682060 2018472 2523090 2604480 2691296 3364120 4036944 5046180 5382592 6728240 8073888 10092360 13456480 16147776 20184720 26912960 40369440 80738880