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78975996 = 22311598303
BaseRepresentation
bin1001011010100…
…01001111111100
312111121101200220
410231101033330
5130204212441
611500421340
71646166501
oct455211774
9174541626
1078975996
1140641920
1222547850
1313492278
14a6bb4a8
156e00466
hex4b513fc

78975996 has 24 divisors (see below), whose sum is σ = 201030144. Its totient is φ = 23932080.

The previous prime is 78975983. The next prime is 78976013. The reversal of 78975996 is 69957987.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 299020 + ... + 299283.

It is an arithmetic number, because the mean of its divisors is an integer number (8376256).

Almost surely, 278975996 is an apocalyptic number.

It is an amenable number.

78975996 is an abundant number, since it is smaller than the sum of its proper divisors (122054148).

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

78975996 is a wasteful number, since it uses less digits than its factorization.

78975996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598321 (or 598319 counting only the distinct ones).

The product of its digits is 8573040, while the sum is 60.

The square root of 78975996 is about 8886.8439842275. The cubic root of 78975996 is about 429.0405795097.

Subtracting from 78975996 its reverse (69957987), we obtain a square (9018009 = 30032).

The spelling of 78975996 in words is "seventy-eight million, nine hundred seventy-five thousand, nine hundred ninety-six".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 598303 1196606 1794909 2393212 3589818 6581333 7179636 13162666 19743999 26325332 39487998 78975996