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68074456 = 238509307
BaseRepresentation
bin1000000111010…
…11101111011000
311202002112121011
410003223233120
5114411340311
610431023304
71454423542
oct403535730
9152075534
1068074456
113547638a
121a96ab34
1311146258
149080692
155e9a321
hex40ebbd8

68074456 has 8 divisors (see below), whose sum is σ = 127639620. Its totient is φ = 34037224.

The previous prime is 68074441. The next prime is 68074469. The reversal of 68074456 is 65447086.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4254646 + ... + 4254661.

Almost surely, 268074456 is an apocalyptic number.

It is an amenable number.

68074456 is a deficient number, since it is larger than the sum of its proper divisors (59565164).

68074456 is a wasteful number, since it uses less digits than its factorization.

68074456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8509313 (or 8509309 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 68074456 is about 8250.7245742419. The cubic root of 68074456 is about 408.3144282608.

The spelling of 68074456 in words is "sixty-eight million, seventy-four thousand, four hundred fifty-six".

Divisors: 1 2 4 8 8509307 17018614 34037228 68074456