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68077086 = 23711147353
BaseRepresentation
bin1000000111011…
…00011000011110
311202002200012120
410003230120132
5114411431321
610431043410
71454434320
oct403543036
9152080176
1068077086
1135478360
121a970566
13111474cc
149081610
155e9aec6
hex40ec61e

68077086 has 32 divisors (see below), whose sum is σ = 169751808. Its totient is φ = 17682240.

The previous prime is 68077067. The next prime is 68077111.

68077086 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73215 + ... + 74138.

It is an arithmetic number, because the mean of its divisors is an integer number (5304744).

Almost surely, 268077086 is an apocalyptic number.

68077086 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

68077086 is an abundant number, since it is smaller than the sum of its proper divisors (101674722).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68077086 is a wasteful number, since it uses less digits than its factorization.

68077086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147376.

The product of its (nonzero) digits is 112896, while the sum is 42.

The square root of 68077086 is about 8250.8839526441. The cubic root of 68077086 is about 408.3196864892.

The spelling of 68077086 in words is "sixty-eight million, seventy-seven thousand, eighty-six".

Divisors: 1 2 3 6 7 11 14 21 22 33 42 66 77 154 231 462 147353 294706 442059 884118 1031471 1620883 2062942 3094413 3241766 4862649 6188826 9725298 11346181 22692362 34038543 68077086