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68472725 = 5223119083
BaseRepresentation
bin1000001010011…
…00111110010101
311202211202220212
410011030332111
5120012111400
610443335205
71461002636
oct405147625
9152752825
1068472725
1135718632
121ab21505
1311255609
14914588d
156028335
hex414cf95

68472725 has 12 divisors (see below), whose sum is σ = 88598496. Its totient is φ = 52396080.

The previous prime is 68472673. The next prime is 68472731. The reversal of 68472725 is 52727486.

It is not a de Polignac number, because 68472725 - 224 = 51695509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 58967 + ... + 60116.

It is an arithmetic number, because the mean of its divisors is an integer number (7383208).

Almost surely, 268472725 is an apocalyptic number.

It is an amenable number.

68472725 is a deficient number, since it is larger than the sum of its proper divisors (20125771).

68472725 is a wasteful number, since it uses less digits than its factorization.

68472725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119116 (or 119111 counting only the distinct ones).

The product of its digits is 188160, while the sum is 41.

The square root of 68472725 is about 8274.8247715586. The cubic root of 68472725 is about 409.1091603904.

The spelling of 68472725 in words is "sixty-eight million, four hundred seventy-two thousand, seven hundred twenty-five".

Divisors: 1 5 23 25 115 575 119083 595415 2738909 2977075 13694545 68472725