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76878413 = 672394801
BaseRepresentation
bin1001001010100…
…01001001001101
312100122211100122
410211101021031
5124140102123
611343434325
71622312213
oct445211115
9170584318
1076878413
113a439987
12218b59a5
1312c095b1
14a2d2cb3
156b38bc8
hex495124d

76878413 has 8 divisors (see below), whose sum is σ = 78368640. Its totient is φ = 75398400.

The previous prime is 76878401. The next prime is 76878421. The reversal of 76878413 is 31487867.

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

It is a cyclic number.

It is not a de Polignac number, because 76878413 - 26 = 76878349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76878433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13613 + ... + 18413.

It is an arithmetic number, because the mean of its divisors is an integer number (9796080).

Almost surely, 276878413 is an apocalyptic number.

It is an amenable number.

76878413 is a deficient number, since it is larger than the sum of its proper divisors (1490227).

76878413 is a wasteful number, since it uses less digits than its factorization.

76878413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5107.

The product of its digits is 225792, while the sum is 44.

The square root of 76878413 is about 8768.0335879831. The cubic root of 76878413 is about 425.2080420892.

The spelling of 76878413 in words is "seventy-six million, eight hundred seventy-eight thousand, four hundred thirteen".

Divisors: 1 67 239 4801 16013 321667 1147439 76878413