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68054923 = 112360601
BaseRepresentation
bin1000000111001…
…10111110001011
311202001112210201
410003212332023
5114410224143
610430353031
71454312566
oct403467613
9152045721
1068054923
1135462742
121a95b777
131113a3b1
1490774dd
155e9464d
hex40e6f8b

68054923 has 4 divisors (see below), whose sum is σ = 68116648. Its totient is φ = 67993200.

The previous prime is 68054891. The next prime is 68054933. The reversal of 68054923 is 32945086.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68054923 - 25 = 68054891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68054933) 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, 29178 + ... + 31423.

It is an arithmetic number, because the mean of its divisors is an integer number (17029162).

Almost surely, 268054923 is an apocalyptic number.

68054923 is a deficient number, since it is larger than the sum of its proper divisors (61725).

68054923 is a wasteful number, since it uses less digits than its factorization.

68054923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61724.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 68054923 is about 8249.5407750977. The cubic root of 68054923 is about 408.2753711795.

The spelling of 68054923 in words is "sixty-eight million, fifty-four thousand, nine hundred twenty-three".

Divisors: 1 1123 60601 68054923