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68567860 = 22529311701
BaseRepresentation
bin1000001011001…
…00001100110100
311210000121102101
410011210030310
5120023132420
610445351444
71461550204
oct405441464
9153017371
1068567860
1135783059
121ab68584
13112899ca
14916c404
15604660a
hex4164334

68567860 has 24 divisors (see below), whose sum is σ = 144496296. Its totient is φ = 27331200.

The previous prime is 68567833. The next prime is 68567881. The reversal of 68567860 is 6876586.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 31674384 + 36893476 = 5628^2 + 6074^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 68567860.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10 + ... + 11710.

It is an arithmetic number, because the mean of its divisors is an integer number (6020679).

Almost surely, 268567860 is an apocalyptic number.

It is an amenable number.

68567860 is an abundant number, since it is smaller than the sum of its proper divisors (75928436).

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

68567860 is a wasteful number, since it uses less digits than its factorization.

68567860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12003 (or 12001 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 46.

The square root of 68567860 is about 8280.5712363339. The cubic root of 68567860 is about 409.2985427984.

The spelling of 68567860 in words is "sixty-eight million, five hundred sixty-seven thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 20 293 586 1172 1465 2930 5860 11701 23402 46804 58505 117010 234020 3428393 6856786 13713572 17141965 34283930 68567860