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68347884 = 223112272281
BaseRepresentation
bin1000001001011…
…10011111101100
311202121102200010
410010232133230
5114444113014
610440533220
71456642653
oct404563754
9152542603
1068347884
1135642860
121aa81210
1311210847
14911219a
156001359
hex412e7ec

68347884 has 48 divisors (see below), whose sum is σ = 174819456. Its totient is φ = 20611200.

The previous prime is 68347879. The next prime is 68347891. The reversal of 68347884 is 48874386.

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, 28824 + ... + 31104.

It is an arithmetic number, because the mean of its divisors is an integer number (3642072).

Almost surely, 268347884 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 68347884, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87409728).

68347884 is an abundant number, since it is smaller than the sum of its proper divisors (106471572).

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

68347884 is a wasteful number, since it uses less digits than its factorization.

68347884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2526 (or 2524 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 48.

The square root of 68347884 is about 8267.2779075098. The cubic root of 68347884 is about 408.8603768167.

The spelling of 68347884 in words is "sixty-eight million, three hundred forty-seven thousand, eight hundred eighty-four".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 227 454 681 908 1362 2281 2497 2724 4562 4994 6843 7491 9124 9988 13686 14982 25091 27372 29964 50182 75273 100364 150546 301092 517787 1035574 1553361 2071148 3106722 5695657 6213444 11391314 17086971 22782628 34173942 68347884