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68039802 = 23210735327
BaseRepresentation
bin1000000111000…
…11010001111010
311202000210001200
410003203101322
5114404233202
610430155030
71454220525
oct403432172
9152023050
1068039802
1135452346
121a952a76
131113354c
149071bbc
155e8ee1c
hex40e347a

68039802 has 24 divisors (see below), whose sum is σ = 148801536. Its totient is φ = 22467336.

The previous prime is 68039791. The next prime is 68039809. The reversal of 68039802 is 20893086.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (68039809) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15738 + ... + 19589.

It is an arithmetic number, because the mean of its divisors is an integer number (6200064).

Almost surely, 268039802 is an apocalyptic number.

68039802 is an abundant number, since it is smaller than the sum of its proper divisors (80761734).

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

68039802 is a wasteful number, since it uses less digits than its factorization.

68039802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35442 (or 35439 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 68039802 is about 8248.6242489278. The cubic root of 68039802 is about 408.2451309515.

The spelling of 68039802 in words is "sixty-eight million, thirty-nine thousand, eight hundred two".

Divisors: 1 2 3 6 9 18 107 214 321 642 963 1926 35327 70654 105981 211962 317943 635886 3779989 7559978 11339967 22679934 34019901 68039802