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68735408 = 2472326683
BaseRepresentation
bin1000001100011…
…01000110110000
311210100010020212
410012031012300
5120044013113
610453123252
71463145530
oct406150660
9153303225
1068735408
1135887a25
121b029528
1311318051
1491b34c0
15607b0a8
hex418d1b0

68735408 has 40 divisors (see below), whose sum is σ = 158823168. Its totient is φ = 28176192.

The previous prime is 68735399. The next prime is 68735441. The reversal of 68735408 is 80453786.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10766 + ... + 15917.

Almost surely, 268735408 is an apocalyptic number.

It is an amenable number.

68735408 is an abundant number, since it is smaller than the sum of its proper divisors (90087760).

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

68735408 is a wasteful number, since it uses less digits than its factorization.

68735408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26721 (or 26715 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 68735408 is about 8290.6819984848. The cubic root of 68735408 is about 409.6316501320.

The spelling of 68735408 in words is "sixty-eight million, seven hundred thirty-five thousand, four hundred eight".

Divisors: 1 2 4 7 8 14 16 23 28 46 56 92 112 161 184 322 368 644 1288 2576 26683 53366 106732 186781 213464 373562 426928 613709 747124 1227418 1494248 2454836 2988496 4295963 4909672 8591926 9819344 17183852 34367704 68735408