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80340960 = 2535723911
BaseRepresentation
bin1001100100111…
…10011111100000
312121011202002010
410302132133200
5131031402320
611545552520
71663613130
oct462363740
9177152063
1080340960
1141394397
1222aa5740
131384c63b
14a954ac0
1570beae0
hex4c9e7e0

80340960 has 96 divisors (see below), whose sum is σ = 289239552. Its totient is φ = 18362880.

The previous prime is 80340947. The next prime is 80340961. The reversal of 80340960 is 6904308.

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

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80340961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8596 + ... + 15315.

It is an arithmetic number, because the mean of its divisors is an integer number (3012912).

Almost surely, 280340960 is an apocalyptic number.

80340960 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80340960 is an abundant number, since it is smaller than the sum of its proper divisors (208898592).

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

80340960 is a wasteful number, since it uses less digits than its factorization.

80340960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23936 (or 23928 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 80340960 is about 8963.3118879129. The cubic root of 80340960 is about 431.4982171132.

The spelling of 80340960 in words is "eighty million, three hundred forty thousand, nine hundred sixty".

Divisors: 1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 32 35 40 42 48 56 60 70 80 84 96 105 112 120 140 160 168 210 224 240 280 336 420 480 560 672 840 1120 1680 3360 23911 47822 71733 95644 119555 143466 167377 191288 239110 286932 334754 358665 382576 478220 502131 573864 669508 717330 765152 836885 956440 1004262 1147728 1339016 1434660 1673770 1912880 2008524 2295456 2510655 2678032 2869320 3347540 3825760 4017048 5021310 5356064 5738640 6695080 8034096 10042620 11477280 13390160 16068192 20085240 26780320 40170480 80340960