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68591242 = 21371671499
BaseRepresentation
bin1000001011010…
…01111010001010
311210001210111101
410011221322022
5120024404432
610450052014
71462005316
oct405517212
9153053441
1068591242
1135799685
121ab7a00a
1311297545
149176b46
15604d4e7
hex4169e8a

68591242 has 16 divisors (see below), whose sum is σ = 104328000. Its totient is φ = 33818848.

The previous prime is 68591233. The next prime is 68591249. The reversal of 68591242 is 24219586.

It is not an unprimeable number, because it can be changed into a prime (68591249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45009 + ... + 46507.

It is an arithmetic number, because the mean of its divisors is an integer number (6520500).

Almost surely, 268591242 is an apocalyptic number.

68591242 is a deficient number, since it is larger than the sum of its proper divisors (35736758).

68591242 is a wasteful number, since it uses less digits than its factorization.

68591242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1805.

The product of its digits is 34560, while the sum is 37.

The square root of 68591242 is about 8281.9829751093. The cubic root of 68591242 is about 409.3450618279.

The spelling of 68591242 in words is "sixty-eight million, five hundred ninety-one thousand, two hundred forty-two".

Divisors: 1 2 137 167 274 334 1499 2998 22879 45758 205363 250333 410726 500666 34295621 68591242