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78496996 = 2261321709
BaseRepresentation
bin1001010110111…
…00010011100100
312110201001122011
410223130103210
5130043400441
611442244004
71642133134
oct453342344
9173631564
1078496996
1140344a56
1222356604
1313355236
14a5d4ac4
156d58581
hex4adc4e4

78496996 has 12 divisors (see below), whose sum is σ = 139622140. Its totient is φ = 38604960.

The previous prime is 78496969. The next prime is 78497009. The reversal of 78496996 is 69969487.

It can be written as a sum of positive squares in 2 ways, for example, as 25644096 + 52852900 = 5064^2 + 7270^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 78496996.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 160611 + ... + 161098.

Almost surely, 278496996 is an apocalyptic number.

It is an amenable number.

78496996 is a deficient number, since it is larger than the sum of its proper divisors (61125144).

78496996 is a wasteful number, since it uses less digits than its factorization.

78496996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321774 (or 321772 counting only the distinct ones).

The product of its digits is 5878656, while the sum is 58.

The square root of 78496996 is about 8859.8530461854. The cubic root of 78496996 is about 428.1714237474.

The spelling of 78496996 in words is "seventy-eight million, four hundred ninety-six thousand, nine hundred ninety-six".

Divisors: 1 2 4 61 122 244 321709 643418 1286836 19624249 39248498 78496996