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68737704 = 2337409153
BaseRepresentation
bin1000001100011…
…01101010101000
311210100020101220
410012031222220
5120044101304
610453142040
71463155320
oct406155250
9153306356
1068737704
1135889722
121b02a920
13113190c9
1491b4280
15607bad9
hex418daa8

68737704 has 32 divisors (see below), whose sum is σ = 196393920. Its totient is φ = 19639296.

The previous prime is 68737679. The next prime is 68737709. The reversal of 68737704 is 40773786.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (68737709) by changing a digit.

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, 204409 + ... + 204744.

It is an arithmetic number, because the mean of its divisors is an integer number (6137310).

Almost surely, 268737704 is an apocalyptic number.

It is an amenable number.

68737704 is an abundant number, since it is smaller than the sum of its proper divisors (127656216).

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

68737704 is a wasteful number, since it uses less digits than its factorization.

68737704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409169 (or 409165 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 42.

The square root of 68737704 is about 8290.8204660335. The cubic root of 68737704 is about 409.6362111185.

The spelling of 68737704 in words is "sixty-eight million, seven hundred thirty-seven thousand, seven hundred four".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 42 56 84 168 409153 818306 1227459 1636612 2454918 2864071 3273224 4909836 5728142 8592213 9819672 11456284 17184426 22912568 34368852 68737704