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68964878 = 249170229
BaseRepresentation
bin1000001110001…
…01001000001110
311210202210000202
410013011020032
5120123334003
610502053502
71465122533
oct407051016
9153683022
1068964878
1135a24374
121b11a292
1311398628
149232d8a
1560c4088
hex41c520e

68964878 has 8 divisors (see below), whose sum is σ = 103659480. Its totient is φ = 34411720.

The previous prime is 68964877. The next prime is 68964881. The reversal of 68964878 is 87846986.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68964877) 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, 34133 + ... + 36096.

It is an arithmetic number, because the mean of its divisors is an integer number (12957435).

Almost surely, 268964878 is an apocalyptic number.

68964878 is a deficient number, since it is larger than the sum of its proper divisors (34694602).

68964878 is a wasteful number, since it uses less digits than its factorization.

68964878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70722.

The product of its digits is 4644864, while the sum is 56.

The square root of 68964878 is about 8304.5094978572. The cubic root of 68964878 is about 410.0869892758.

The spelling of 68964878 in words is "sixty-eight million, nine hundred sixty-four thousand, eight hundred seventy-eight".

Divisors: 1 2 491 982 70229 140458 34482439 68964878