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78056135 = 523678749
BaseRepresentation
bin1001010011100…
…00101011000111
312102212122212222
410221300223013
5124440244020
611425002555
71635315623
oct451605307
9172778788
1078056135
1140073803
122218345b
131322c681
14a51c183
156cbcb25
hex4a70ac7

78056135 has 8 divisors (see below), whose sum is σ = 97740000. Its totient is φ = 59729824.

The previous prime is 78056131. The next prime is 78056141. The reversal of 78056135 is 53165087.

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 78056135 - 22 = 78056131 is a prime.

It is a super-2 number, since 2×780561352 = 12185520422276450, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78056095 and 78056104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78056131) 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, 339260 + ... + 339489.

It is an arithmetic number, because the mean of its divisors is an integer number (12217500).

Almost surely, 278056135 is an apocalyptic number.

78056135 is a deficient number, since it is larger than the sum of its proper divisors (19683865).

78056135 is a wasteful number, since it uses less digits than its factorization.

78056135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678777.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 78056135 is about 8834.9383133104. The cubic root of 78056135 is about 427.3683417513.

The spelling of 78056135 in words is "seventy-eight million, fifty-six thousand, one hundred thirty-five".

Divisors: 1 5 23 115 678749 3393745 15611227 78056135