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68799406 = 2135349927
BaseRepresentation
bin1000001100111…
…00101110101110
311210110101001011
410012130232232
5120103040111
610454335434
71463533234
oct406345656
9153411034
1068799406
1135921015
121b05a57a
131133b210
1491cc954
156090021
hex419cbae

68799406 has 16 divisors (see below), whose sum is σ = 113236704. Its totient is φ = 31153824.

The previous prime is 68799377. The next prime is 68799413. The reversal of 68799406 is 60499786.

It is a self number, because there is not a number n which added to its sum of digits gives 68799406.

It is a congruent 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, 23586 + ... + 26341.

It is an arithmetic number, because the mean of its divisors is an integer number (7077294).

Almost surely, 268799406 is an apocalyptic number.

68799406 is a deficient number, since it is larger than the sum of its proper divisors (44437298).

68799406 is a wasteful number, since it uses less digits than its factorization.

68799406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49995.

The product of its (nonzero) digits is 653184, while the sum is 49.

The square root of 68799406 is about 8294.5407347243. The cubic root of 68799406 is about 409.7587436493.

The spelling of 68799406 in words is "sixty-eight million, seven hundred ninety-nine thousand, four hundred six".

Divisors: 1 2 13 26 53 106 689 1378 49927 99854 649051 1298102 2646131 5292262 34399703 68799406