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68469942 = 23231074637
BaseRepresentation
bin1000001010011…
…00010010110110
311202211122002210
410011030102312
5120012014232
610443314250
71460661552
oct405142266
9152748083
1068469942
1135716532
121ab1b986
1311254278
149144862
1560275cc
hex414c4b6

68469942 has 32 divisors (see below), whose sum is σ = 144260352. Its totient is φ = 21622304.

The previous prime is 68469941. The next prime is 68469991. The reversal of 68469942 is 24996486.

It is a junction number, because it is equal to n+sod(n) for n = 68469891 and 68469900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68469941) 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, 12448 + ... + 17084.

It is an arithmetic number, because the mean of its divisors is an integer number (4508136).

Almost surely, 268469942 is an apocalyptic number.

68469942 is an abundant number, since it is smaller than the sum of its proper divisors (75790410).

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

68469942 is a wasteful number, since it uses less digits than its factorization.

68469942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4772.

The product of its digits is 746496, while the sum is 48.

The square root of 68469942 is about 8274.6566091893. The cubic root of 68469942 is about 409.1036177152.

The spelling of 68469942 in words is "sixty-eight million, four hundred sixty-nine thousand, nine hundred forty-two".

Divisors: 1 2 3 6 23 46 69 107 138 214 321 642 2461 4637 4922 7383 9274 13911 14766 27822 106651 213302 319953 496159 639906 992318 1488477 2976954 11411657 22823314 34234971 68469942