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68929996 = 2299117389
BaseRepresentation
bin1000001101111…
…00100111001100
311210201000011211
410012330213030
5120121224441
610501224204
71464616042
oct406744714
9153630154
1068929996
1135a00143
121b102064
13113857a5
149224392
1560b8a81
hex41bc9cc

68929996 has 12 divisors (see below), whose sum is σ = 120756160. Its totient is φ = 34428240.

The previous prime is 68929981. The next prime is 68929999. The reversal of 68929996 is 69992986.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 68929996.

It is not an unprimeable number, because it can be changed into a prime (68929999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4731 + ... + 12658.

Almost surely, 268929996 is an apocalyptic number.

It is an amenable number.

68929996 is a deficient number, since it is larger than the sum of its proper divisors (51826164).

68929996 is a wasteful number, since it uses less digits than its factorization.

68929996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18384 (or 18382 counting only the distinct ones).

The product of its digits is 3779136, while the sum is 58.

The square root of 68929996 is about 8302.4090479812. The cubic root of 68929996 is about 410.0178378121.

The spelling of 68929996 in words is "sixty-eight million, nine hundred twenty-nine thousand, nine hundred ninety-six".

Divisors: 1 2 4 991 1982 3964 17389 34778 69556 17232499 34464998 68929996