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68948884 = 2217237221
BaseRepresentation
bin1000001110000…
…01001110010100
311210201222002101
410013001032110
5120122331014
610501451444
71465025104
oct407011624
9153658071
1068948884
1135a13354
121b110b84
1311391274
14922b204
1560be474
hex41c1394

68948884 has 6 divisors (see below), whose sum is σ = 120660554. Its totient is φ = 34474440.

The previous prime is 68948857. The next prime is 68948897. The reversal of 68948884 is 48884986.

It can be written as a sum of positive squares in only one way, i.e., 48608784 + 20340100 = 6972^2 + 4510^2 .

It is a super-3 number, since 3×689488843 (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8618607 + ... + 8618614.

Almost surely, 268948884 is an apocalyptic number.

It is an amenable number.

68948884 is a deficient number, since it is larger than the sum of its proper divisors (51711670).

68948884 is a wasteful number, since it uses less digits than its factorization.

68948884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17237225 (or 17237223 counting only the distinct ones).

The product of its digits is 3538944, while the sum is 55.

The square root of 68948884 is about 8303.5464712375. The cubic root of 68948884 is about 410.0552850296.

The spelling of 68948884 in words is "sixty-eight million, nine hundred forty-eight thousand, eight hundred eighty-four".

Divisors: 1 2 4 17237221 34474442 68948884