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68629704 = 233111319997
BaseRepresentation
bin1000001011100…
…11010011001000
311210010202020220
410011303103020
5120032122304
610450550040
71462225413
oct405632310
9153122226
1068629704
1135815570
121ab98320
13112abbc0
149186b7a
156059ad9
hex41734c8

68629704 has 64 divisors (see below), whose sum is σ = 201579840. Its totient is φ = 19196160.

The previous prime is 68629703. The next prime is 68629733. The reversal of 68629704 is 40792686.

It is a super-2 number, since 2×686297042 = 9420072542255232, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68629703) 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 15 ways as a sum of consecutive naturals, for example, 6567 + ... + 13430.

It is an arithmetic number, because the mean of its divisors is an integer number (3149685).

Almost surely, 268629704 is an apocalyptic number.

It is an amenable number.

68629704 is an abundant number, since it is smaller than the sum of its proper divisors (132950136).

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

68629704 is a wasteful number, since it uses less digits than its factorization.

68629704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20030 (or 20026 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 68629704 is about 8284.3046781248. The cubic root of 68629704 is about 409.4215598734.

The spelling of 68629704 in words is "sixty-eight million, six hundred twenty-nine thousand, seven hundred four".

Divisors: 1 2 3 4 6 8 11 12 13 22 24 26 33 39 44 52 66 78 88 104 132 143 156 264 286 312 429 572 858 1144 1716 3432 19997 39994 59991 79988 119982 159976 219967 239964 259961 439934 479928 519922 659901 779883 879868 1039844 1319802 1559766 1759736 2079688 2639604 2859571 3119532 5279208 5719142 6239064 8578713 11438284 17157426 22876568 34314852 68629704