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78960426 = 2323572177
BaseRepresentation
bin1001011010011…
…01011100101010
312111120121100020
410231031130222
5130203213201
611500221310
71646103216
oct455153452
9174517306
1078960426
1140631156
122253a836
131348815c
14a6b5946
156deaa36
hex4b4d72a

78960426 has 16 divisors (see below), whose sum is σ = 164787264. Its totient is φ = 25175744.

The previous prime is 78960397. The next prime is 78960451. The reversal of 78960426 is 62406987.

It is a Curzon 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, 285951 + ... + 286226.

It is an arithmetic number, because the mean of its divisors is an integer number (10299204).

Almost surely, 278960426 is an apocalyptic number.

78960426 is an abundant number, since it is smaller than the sum of its proper divisors (85826838).

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

78960426 is a wasteful number, since it uses less digits than its factorization.

78960426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572205.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 78960426 is about 8885.9679270184. The cubic root of 78960426 is about 429.0123827529.

The spelling of 78960426 in words is "seventy-eight million, nine hundred sixty thousand, four hundred twenty-six".

Divisors: 1 2 3 6 23 46 69 138 572177 1144354 1716531 3433062 13160071 26320142 39480213 78960426