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68883651 = 3219938461
BaseRepresentation
bin1000001101100…
…01010011000011
311210121122121100
410012301103003
5120113234101
610500225443
71464333654
oct406612303
9153548540
1068883651
1135979341
121b09b283
131136a675
14921152b
1560a9e86
hex41b14c3

68883651 has 12 divisors (see below), whose sum is σ = 100001200. Its totient is φ = 45690480.

The previous prime is 68883641. The next prime is 68883653. The reversal of 68883651 is 15638886.

It is not a de Polignac number, because 68883651 - 26 = 68883587 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68883597 and 68883606.

It is not an unprimeable number, because it can be changed into a prime (68883653) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 17440 + ... + 21021.

Almost surely, 268883651 is an apocalyptic number.

68883651 is a deficient number, since it is larger than the sum of its proper divisors (31117549).

68883651 is a wasteful number, since it uses less digits than its factorization.

68883651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38666 (or 38663 counting only the distinct ones).

The product of its digits is 276480, while the sum is 45.

The square root of 68883651 is about 8299.6175213078. The cubic root of 68883651 is about 409.9259255431.

The spelling of 68883651 in words is "sixty-eight million, eight hundred eighty-three thousand, six hundred fifty-one".

Divisors: 1 3 9 199 597 1791 38461 115383 346149 7653739 22961217 68883651