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68048889 = 341599377
BaseRepresentation
bin1000000111001…
…01011111111001
311202001020112020
410003211133321
5114410031024
610430305053
71454256156
oct403453771
9152036466
1068048889
1135459157
121a958189
131113771c
14907522d
155e92979
hex40e57f9

68048889 has 16 divisors (see below), whose sum is σ = 94530240. Its totient is φ = 43504640.

The previous prime is 68048887. The next prime is 68048891. The reversal of 68048889 is 98884086.

It is an interprime number because it is at equal distance from previous prime (68048887) and next prime (68048891).

It is a cyclic number.

It is not a de Polignac number, because 68048889 - 21 = 68048887 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68048887) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2569 + ... + 11945.

It is an arithmetic number, because the mean of its divisors is an integer number (5908140).

Almost surely, 268048889 is an apocalyptic number.

It is an amenable number.

68048889 is a deficient number, since it is larger than the sum of its proper divisors (26481351).

68048889 is a wasteful number, since it uses less digits than its factorization.

68048889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9480.

The product of its (nonzero) digits is 884736, while the sum is 51.

The square root of 68048889 is about 8249.1750496641. The cubic root of 68048889 is about 408.2633044237.

The spelling of 68048889 in words is "sixty-eight million, forty-eight thousand, eight hundred eighty-nine".

Divisors: 1 3 41 59 123 177 2419 7257 9377 28131 384457 553243 1153371 1659729 22682963 68048889