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78960057 = 3112392729
BaseRepresentation
bin1001011010011…
…01010110111001
312111120120211120
410231031112321
5130203210212
611500215453
71646102151
oct455152671
9174516746
1078960057
1140630950
122253a589
1313487c37
14a6b5761
156dea88c
hex4b4d5b9

78960057 has 8 divisors (see below), whose sum is σ = 114851040. Its totient is φ = 47854560.

The previous prime is 78960043. The next prime is 78960071. The reversal of 78960057 is 75006987.

It is an interprime number because it is at equal distance from previous prime (78960043) and next prime (78960071).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 78960057 - 24 = 78960041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78960097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1196332 + ... + 1196397.

It is an arithmetic number, because the mean of its divisors is an integer number (14356380).

Almost surely, 278960057 is an apocalyptic number.

It is an amenable number.

78960057 is a deficient number, since it is larger than the sum of its proper divisors (35890983).

78960057 is a wasteful number, since it uses less digits than its factorization.

78960057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2392743.

The product of its (nonzero) digits is 105840, while the sum is 42.

The square root of 78960057 is about 8885.9471639212. The cubic root of 78960057 is about 429.0117144611.

The spelling of 78960057 in words is "seventy-eight million, nine hundred sixty thousand, fifty-seven".

Divisors: 1 3 11 33 2392729 7178187 26320019 78960057