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68083752 = 23311257893
BaseRepresentation
bin1000000111011…
…10000000101000
311202010000100110
410003232000220
5114412140002
610431134320
71454462622
oct403560050
9152100313
1068083752
1135482370
121a9743a0
131114a559
149083c12
155e9ce6c
hex40ee028

68083752 has 32 divisors (see below), whose sum is σ = 185683680. Its totient is φ = 20631360.

The previous prime is 68083751. The next prime is 68083787. The reversal of 68083752 is 25738086.

It is a self number, because there is not a number n which added to its sum of digits gives 68083752.

It is not an unprimeable number, because it can be changed into a prime (68083751) 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, 128683 + ... + 129210.

It is an arithmetic number, because the mean of its divisors is an integer number (5802615).

Almost surely, 268083752 is an apocalyptic number.

It is an amenable number.

68083752 is an abundant number, since it is smaller than the sum of its proper divisors (117599928).

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

68083752 is a wasteful number, since it uses less digits than its factorization.

68083752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257913 (or 257909 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 68083752 is about 8251.2878994736. The cubic root of 68083752 is about 408.3330133923. Note that the first 3 decimals are identical.

The spelling of 68083752 in words is "sixty-eight million, eighty-three thousand, seven hundred fifty-two".

Divisors: 1 2 3 4 6 8 11 12 22 24 33 44 66 88 132 264 257893 515786 773679 1031572 1547358 2063144 2836823 3094716 5673646 6189432 8510469 11347292 17020938 22694584 34041876 68083752