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68085753 = 322695251
BaseRepresentation
bin1000000111011…
…10011111111001
311202010010002120
410003232133321
5114412221003
610431151453
71454501511
oct403563771
9152103076
1068085753
113548391a
121a975589
131114b438
149084841
155e9d853
hex40ee7f9

68085753 has 4 divisors (see below), whose sum is σ = 90781008. Its totient is φ = 45390500.

The previous prime is 68085739. The next prime is 68085763. The reversal of 68085753 is 35758086.

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 not a de Polignac number, because 68085753 - 24 = 68085737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68085763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11347623 + ... + 11347628.

It is an arithmetic number, because the mean of its divisors is an integer number (22695252).

Almost surely, 268085753 is an apocalyptic number.

It is an amenable number.

68085753 is a deficient number, since it is larger than the sum of its proper divisors (22695255).

68085753 is a wasteful number, since it uses less digits than its factorization.

68085753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22695254.

The product of its (nonzero) digits is 201600, while the sum is 42.

The square root of 68085753 is about 8251.4091523812. The cubic root of 68085753 is about 408.3370136926.

It can be divided in two parts, 6808 and 5753, that added together give a triangular number (12561 = T158).

The spelling of 68085753 in words is "sixty-eight million, eighty-five thousand, seven hundred fifty-three".

Divisors: 1 3 22695251 68085753