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68956349 = 7111795003
BaseRepresentation
bin1000001110000…
…11000010111101
311210202100022212
410013003002331
5120123100344
610501550205
71465055630
oct407030275
9153670285
1068956349
1135a18a20
121b115365
1311394797
14922dc17
1560c179e
hex41c30bd

68956349 has 16 divisors (see below), whose sum is σ = 86469120. Its totient is φ = 53421360.

The previous prime is 68956331. The next prime is 68956351. The reversal of 68956349 is 94365986.

It is a cyclic number.

It is not a de Polignac number, because 68956349 - 224 = 52179133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68956297 and 68956306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68956319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11282 + ... + 16284.

It is an arithmetic number, because the mean of its divisors is an integer number (5404320).

Almost surely, 268956349 is an apocalyptic number.

It is an amenable number.

68956349 is a deficient number, since it is larger than the sum of its proper divisors (17512771).

68956349 is a wasteful number, since it uses less digits than its factorization.

68956349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5200.

The product of its digits is 1399680, while the sum is 50.

The square root of 68956349 is about 8303.9959657986. The cubic root of 68956349 is about 410.0700832011.

The spelling of 68956349 in words is "sixty-eight million, nine hundred fifty-six thousand, three hundred forty-nine".

Divisors: 1 7 11 77 179 1253 1969 5003 13783 35021 55033 385231 895537 6268759 9850907 68956349