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78996369 = 337711679
BaseRepresentation
bin1001011010101…
…10001110010001
312111122102122110
410231112032101
5130210340434
611501055533
71646313054
oct455261621
9174572573
1078996369
1140656161
12225575a9
131349b61a
14a6c4a9b
156e064e9
hex4b56391

78996369 has 8 divisors (see below), whose sum is σ = 108175360. Its totient is φ = 51240816.

The previous prime is 78996367. The next prime is 78996371. The reversal of 78996369 is 96369987.

It is an interprime number because it is at equal distance from previous prime (78996367) and next prime (78996371).

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

It is not a de Polignac number, because 78996369 - 21 = 78996367 is a prime.

It is a super-2 number, since 2×789963692 = 12480852630368322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78996367) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 355729 + ... + 355950.

It is an arithmetic number, because the mean of its divisors is an integer number (13521920).

Almost surely, 278996369 is an apocalyptic number.

It is an amenable number.

78996369 is a deficient number, since it is larger than the sum of its proper divisors (29178991).

78996369 is a wasteful number, since it uses less digits than its factorization.

78996369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711719.

The product of its digits is 4408992, while the sum is 57.

The square root of 78996369 is about 8887.9901552601. The cubic root of 78996369 is about 429.0774687447.

The spelling of 78996369 in words is "seventy-eight million, nine hundred ninety-six thousand, three hundred sixty-nine".

Divisors: 1 3 37 111 711679 2135037 26332123 78996369