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68423982 = 23112234649
BaseRepresentation
bin1000001010000…
…01000100101110
311202202022001120
410011001010232
5120004031412
610442321410
71460410554
oct405010456
9152668046
1068423982
1135694a50
121aab9266
1311239383
149131bd4
156018b8c
hex414112e

68423982 has 32 divisors (see below), whose sum is σ = 149990400. Its totient is φ = 20637120.

The previous prime is 68423981. The next prime is 68423983. The reversal of 68423982 is 28932486.

It is an interprime number because it is at equal distance from previous prime (68423981) and next prime (68423983).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68423981) 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, 12394 + ... + 17042.

It is an arithmetic number, because the mean of its divisors is an integer number (4687200).

Almost surely, 268423982 is an apocalyptic number.

68423982 is an abundant number, since it is smaller than the sum of its proper divisors (81566418).

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

68423982 is a wasteful number, since it uses less digits than its factorization.

68423982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4888.

The product of its digits is 165888, while the sum is 42.

The square root of 68423982 is about 8271.8789884766. The cubic root of 68423982 is about 409.0120611855.

The spelling of 68423982 in words is "sixty-eight million, four hundred twenty-three thousand, nine hundred eighty-two".

Divisors: 1 2 3 6 11 22 33 66 223 446 669 1338 2453 4649 4906 7359 9298 13947 14718 27894 51139 102278 153417 306834 1036727 2073454 3110181 6220362 11403997 22807994 34211991 68423982