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68755976 = 2315795443
BaseRepresentation
bin1000001100100…
…10001000001000
311210101011110122
410012102020020
5120100142401
610453402412
71463262512
oct406221010
9153334418
1068755976
11358a1423
121b039408
1311324513
1491babb2
15608221b
hex4192208

68755976 has 16 divisors (see below), whose sum is σ = 129022800. Its totient is φ = 34349904.

The previous prime is 68755961. The next prime is 68755979. The reversal of 68755976 is 67955786.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (68755979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9911 + ... + 15353.

It is an arithmetic number, because the mean of its divisors is an integer number (8063925).

Almost surely, 268755976 is an apocalyptic number.

It is an amenable number.

68755976 is a deficient number, since it is larger than the sum of its proper divisors (60266824).

68755976 is a wasteful number, since it uses less digits than its factorization.

68755976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7028 (or 7024 counting only the distinct ones).

The product of its digits is 3175200, while the sum is 53.

The square root of 68755976 is about 8291.9223344168. The cubic root of 68755976 is about 409.6725046871.

The spelling of 68755976 in words is "sixty-eight million, seven hundred fifty-five thousand, nine hundred seventy-six".

Divisors: 1 2 4 8 1579 3158 5443 6316 10886 12632 21772 43544 8594497 17188994 34377988 68755976