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68926753 = 79846679
BaseRepresentation
bin1000001101110…
…11110100100001
311210200211201201
410012323310201
5120121124003
610501201201
71464603430
oct406736441
9153624651
1068926753
11359a8765
121b100201
131138417c
149223117
1560b7b1d
hex41bbd21

68926753 has 4 divisors (see below), whose sum is σ = 78773440. Its totient is φ = 59080068.

The previous prime is 68926727. The next prime is 68926763. The reversal of 68926753 is 35762986.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-68926753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68926763) 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, 4923333 + ... + 4923346.

It is an arithmetic number, because the mean of its divisors is an integer number (19693360).

Almost surely, 268926753 is an apocalyptic number.

It is an amenable number.

68926753 is a deficient number, since it is larger than the sum of its proper divisors (9846687).

68926753 is an equidigital number, since it uses as much as digits as its factorization.

68926753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9846686.

The product of its digits is 544320, while the sum is 46.

The square root of 68926753 is about 8302.2137409248. The cubic root of 68926753 is about 410.0114075747.

The spelling of 68926753 in words is "sixty-eight million, nine hundred twenty-six thousand, seven hundred fifty-three".

Divisors: 1 7 9846679 68926753