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68044984 = 23711310753
BaseRepresentation
bin1000000111001…
…00100010111000
311202001001011121
410003210202320
5114404414414
610430235024
71454241610
oct403444270
9152031147
1068044984
1135456227
121a955a74
1311135a07
149073a40
155e91724
hex40e48b8

68044984 has 32 divisors (see below), whose sum is σ = 147114720. Its totient is φ = 28901376.

The previous prime is 68044957. The next prime is 68045009. The reversal of 68044984 is 48944086.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 68044984.

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, 952 + ... + 11704.

It is an arithmetic number, because the mean of its divisors is an integer number (4597335).

Almost surely, 268044984 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 68044984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73557360).

68044984 is an abundant number, since it is smaller than the sum of its proper divisors (79069736).

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

68044984 is a wasteful number, since it uses less digits than its factorization.

68044984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10879 (or 10875 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 43.

The square root of 68044984 is about 8248.9383559341. The cubic root of 68044984 is about 408.2554948488.

The spelling of 68044984 in words is "sixty-eight million, forty-four thousand, nine hundred eighty-four".

Divisors: 1 2 4 7 8 14 28 56 113 226 452 791 904 1582 3164 6328 10753 21506 43012 75271 86024 150542 301084 602168 1215089 2430178 4860356 8505623 9720712 17011246 34022492 68044984