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68725972 = 22710132423
BaseRepresentation
bin1000001100010…
…10110011010100
311210022122022101
410012022303110
5120043212342
610453011444
71463106160
oct406126324
9153278271
1068725972
1135880927
121b023b84
1311313973
1491adca0
1560783b7
hex418acd4

68725972 has 24 divisors (see below), whose sum is σ = 137644416. Its totient is φ = 29412768.

The previous prime is 68725939. The next prime is 68725991. The reversal of 68725972 is 27952786.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27153 + ... + 29575.

It is an arithmetic number, because the mean of its divisors is an integer number (5735184).

Almost surely, 268725972 is an apocalyptic number.

It is an amenable number.

68725972 is an abundant number, since it is smaller than the sum of its proper divisors (68918444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68725972 is a wasteful number, since it uses less digits than its factorization.

68725972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3447 (or 3445 counting only the distinct ones).

The product of its digits is 423360, while the sum is 46.

The square root of 68725972 is about 8290.1129063481. The cubic root of 68725972 is about 409.6129045236.

The spelling of 68725972 in words is "sixty-eight million, seven hundred twenty-five thousand, nine hundred seventy-two".

Divisors: 1 2 4 7 14 28 1013 2026 2423 4052 4846 7091 9692 14182 16961 28364 33922 67844 2454499 4908998 9817996 17181493 34362986 68725972