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78272095 = 5111423129
BaseRepresentation
bin1001010101001…
…01011001011111
312110021122010111
410222211121133
5130014201340
611433350451
71640205346
oct452453137
9173248114
1078272095
1140200a90
1222268427
13132a6a65
14a576b5d
156d11aea
hex4aa565f

78272095 has 8 divisors (see below), whose sum is σ = 102465360. Its totient is φ = 56925120.

The previous prime is 78272087. The next prime is 78272203. The reversal of 78272095 is 59027287.

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

It is not a de Polignac number, because 78272095 - 23 = 78272087 is a prime.

It is a super-2 number, since 2×782720952 = 12253041711378050, which contains 22 as substring.

It is a congruent 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, 711510 + ... + 711619.

It is an arithmetic number, because the mean of its divisors is an integer number (12808170).

Almost surely, 278272095 is an apocalyptic number.

78272095 is a deficient number, since it is larger than the sum of its proper divisors (24193265).

78272095 is a wasteful number, since it uses less digits than its factorization.

78272095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1423145.

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 78272095 is about 8847.1518015687. The cubic root of 78272095 is about 427.7621159661.

The spelling of 78272095 in words is "seventy-eight million, two hundred seventy-two thousand, ninety-five".

Divisors: 1 5 11 55 1423129 7115645 15654419 78272095