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68952672 = 25321912601
BaseRepresentation
bin1000001110000…
…10001001100000
311210202011021200
410013002021200
5120122441142
610501521200
71465042125
oct407021140
9153664250
1068952672
1135a16188
121b113200
1311392bc9
14922c74c
1560c064c
hex41c2260

68952672 has 72 divisors (see below), whose sum is σ = 206420760. Its totient is φ = 21772800.

The previous prime is 68952671. The next prime is 68952677. The reversal of 68952672 is 27625986.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68952671) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 829 + ... + 11772.

It is an arithmetic number, because the mean of its divisors is an integer number (2866955).

Almost surely, 268952672 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 68952672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103210380).

68952672 is an abundant number, since it is smaller than the sum of its proper divisors (137468088).

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

68952672 is a wasteful number, since it uses less digits than its factorization.

68952672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12636 (or 12625 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 68952672 is about 8303.7745634139. The cubic root of 68952672 is about 410.0627942687.

It can be divided in two parts, 689 and 52672, that added together give a square (53361 = 2312).

The spelling of 68952672 in words is "sixty-eight million, nine hundred fifty-two thousand, six hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 19 24 32 36 38 48 57 72 76 96 114 144 152 171 228 288 304 342 456 608 684 912 1368 1824 2736 5472 12601 25202 37803 50404 75606 100808 113409 151212 201616 226818 239419 302424 403232 453636 478838 604848 718257 907272 957676 1209696 1436514 1814544 1915352 2154771 2873028 3629088 3830704 4309542 5746056 7661408 8619084 11492112 17238168 22984224 34476336 68952672