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78113134 = 21114512447
BaseRepresentation
bin1001010011111…
…10100101101110
312102222120002001
410221332211232
5124444110014
611430122514
71635644041
oct451764556
9172876061
1078113134
1140102610
12221b043a
131324c5b8
14a534c58
156cce974
hex4a7e96e

78113134 has 16 divisors (see below), whose sum is σ = 127961856. Its totient is φ = 35467000.

The previous prime is 78113117. The next prime is 78113137. The reversal of 78113134 is 43131187.

It is a super-2 number, since 2×781131342 = 12203323406603912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78113137) 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, 30699 + ... + 33145.

It is an arithmetic number, because the mean of its divisors is an integer number (7997616).

Almost surely, 278113134 is an apocalyptic number.

78113134 is a deficient number, since it is larger than the sum of its proper divisors (49848722).

78113134 is a wasteful number, since it uses less digits than its factorization.

78113134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3911.

The product of its digits is 2016, while the sum is 28.

The square root of 78113134 is about 8838.1634970168. The cubic root of 78113134 is about 427.4723422938.

The spelling of 78113134 in words is "seventy-eight million, one hundred thirteen thousand, one hundred thirty-four".

Divisors: 1 2 11 22 1451 2447 2902 4894 15961 26917 31922 53834 3550597 7101194 39056567 78113134