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68779032 = 23371133623
BaseRepresentation
bin1000001100101…
…11110000011000
311210102100002120
410012113300120
5120101412112
610454101240
71463416650
oct406276030
9153370076
1068779032
1135907783
121b04a820
1311331b6a
1491c5360
156088e8c
hex4197c18

68779032 has 64 divisors (see below), whose sum is σ = 198305280. Its totient is φ = 19471872.

The previous prime is 68779027. The next prime is 68779043. The reversal of 68779032 is 23097786.

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 pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17173 + ... + 20795.

It is an arithmetic number, because the mean of its divisors is an integer number (3098520).

Almost surely, 268779032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68779032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99152640).

68779032 is an abundant number, since it is smaller than the sum of its proper divisors (129526248).

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

68779032 is a wasteful number, since it uses less digits than its factorization.

68779032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3752 (or 3748 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 42.

The square root of 68779032 is about 8293.3124865762. The cubic root of 68779032 is about 409.7182915129.

The spelling of 68779032 in words is "sixty-eight million, seven hundred seventy-nine thousand, thirty-two".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 42 56 84 113 168 226 339 452 678 791 904 1356 1582 2373 2712 3164 3623 4746 6328 7246 9492 10869 14492 18984 21738 25361 28984 43476 50722 76083 86952 101444 152166 202888 304332 409399 608664 818798 1228197 1637596 2456394 2865793 3275192 4912788 5731586 8597379 9825576 11463172 17194758 22926344 34389516 68779032