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68911683 = 3223103007
BaseRepresentation
bin1000001101110…
…00001001000011
311210200002001120
410012320021003
5120120133213
610501003323
71464511461
oct406701103
9153602046
1068911683
1135998405
121b0b3543
131137a359
14921b831
1560b3423
hex41b8243

68911683 has 8 divisors (see below), whose sum is σ = 92295168. Its totient is φ = 45734664.

The previous prime is 68911681. The next prime is 68911697. The reversal of 68911683 is 38611986.

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

It is not a de Polignac number, because 68911683 - 21 = 68911681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68911681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50835 + ... + 52172.

It is an arithmetic number, because the mean of its divisors is an integer number (11536896).

Almost surely, 268911683 is an apocalyptic number.

68911683 is a deficient number, since it is larger than the sum of its proper divisors (23383485).

68911683 is a wasteful number, since it uses less digits than its factorization.

68911683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103233.

The product of its digits is 62208, while the sum is 42.

The square root of 68911683 is about 8301.3061020541. The cubic root of 68911683 is about 409.9815240534.

The spelling of 68911683 in words is "sixty-eight million, nine hundred eleven thousand, six hundred eighty-three".

Divisors: 1 3 223 669 103007 309021 22970561 68911683