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68814976 = 274211277
BaseRepresentation
bin1000001101000…
…00100010000000
311210111011101211
410012200202000
5120104034401
610454535504
71463626516
oct406404200
9153434354
1068814976
113593178a
121b067594
1311345329
1491d44b6
156094951
hex41a0880

68814976 has 32 divisors (see below), whose sum is σ = 137525580. Its totient is φ = 34298880.

The previous prime is 68814973. The next prime is 68814989. The reversal of 68814976 is 67941886.

68814976 is nontrivially palindromic in base 3.

It can be written as a sum of positive squares in 2 ways, for example, as 63616576 + 5198400 = 7976^2 + 2280^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (68814973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53250 + ... + 54526.

Almost surely, 268814976 is an apocalyptic number.

It is an amenable number.

68814976 is a deficient number, since it is larger than the sum of its proper divisors (68710604).

68814976 is a wasteful number, since it uses less digits than its factorization.

68814976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1712 (or 1700 counting only the distinct ones).

The product of its digits is 580608, while the sum is 49.

The square root of 68814976 is about 8295.4792507727. The cubic root of 68814976 is about 409.7896521643.

The spelling of 68814976 in words is "sixty-eight million, eight hundred fourteen thousand, nine hundred seventy-six".

Divisors: 1 2 4 8 16 32 64 128 421 842 1277 1684 2554 3368 5108 6736 10216 13472 20432 26944 40864 53888 81728 163456 537617 1075234 2150468 4300936 8601872 17203744 34407488 68814976