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68702238 = 23211467743
BaseRepresentation
bin1000001100001…
…01000000011110
311210021102202100
410012011000132
5120041432423
610452305530
71462650033
oct406050036
9153242670
1068702238
1135865010
121b0122a6
1311305c17
1491a538a
156071343
hex418501e

68702238 has 48 divisors (see below), whose sum is σ = 162953856. Its totient is φ = 20746320.

The previous prime is 68702237. The next prime is 68702267. The reversal of 68702238 is 83220786.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68702237) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 92095 + ... + 92837.

It is an arithmetic number, because the mean of its divisors is an integer number (3394872).

Almost surely, 268702238 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68702238, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81476928).

68702238 is an abundant number, since it is smaller than the sum of its proper divisors (94251618).

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

68702238 is a wasteful number, since it uses less digits than its factorization.

68702238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1229 (or 1226 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 68702238 is about 8288.6813185211. The cubic root of 68702238 is about 409.5657468444.

The spelling of 68702238 in words is "sixty-eight million, seven hundred two thousand, two hundred thirty-eight".

Divisors: 1 2 3 6 9 11 18 22 33 66 99 198 467 743 934 1401 1486 2229 2802 4203 4458 5137 6687 8173 8406 10274 13374 15411 16346 24519 30822 46233 49038 73557 92466 147114 346981 693962 1040943 2081886 3122829 3816791 6245658 7633582 11450373 22900746 34351119 68702238