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68881762 = 2673311553
BaseRepresentation
bin1000001101100…
…00110101100010
311210121120000101
410012300311202
5120113204022
610500213014
71464325315
oct406606542
9153546011
1068881762
1135977984
121b09a16a
1311369851
14921097c
1560a9627
hex41b0d62

68881762 has 16 divisors (see below), whose sum is σ = 105249312. Its totient is φ = 33802560.

The previous prime is 68881751. The next prime is 68881777. The reversal of 68881762 is 26718886.

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 7 ways as a sum of consecutive naturals, for example, 43578 + ... + 45130.

It is an arithmetic number, because the mean of its divisors is an integer number (6578082).

Almost surely, 268881762 is an apocalyptic number.

68881762 is a deficient number, since it is larger than the sum of its proper divisors (36367550).

68881762 is a wasteful number, since it uses less digits than its factorization.

68881762 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1953.

The product of its digits is 258048, while the sum is 46.

The square root of 68881762 is about 8299.5037201028. The cubic root of 68881762 is about 409.9221783687.

The spelling of 68881762 in words is "sixty-eight million, eight hundred eighty-one thousand, seven hundred sixty-two".

Divisors: 1 2 67 134 331 662 1553 3106 22177 44354 104051 208102 514043 1028086 34440881 68881762