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68240850 = 23522811619
BaseRepresentation
bin1000001000101…
…00010111010010
311202101222211220
410010110113102
5114432201400
610434345510
71456015626
oct404242722
9152358756
1068240850
113557a3a7
121aa2b296
13111a3c02
1490c5186
155ece7a0
hex41145d2

68240850 has 48 divisors (see below), whose sum is σ = 169944480. Its totient is φ = 18121600.

The previous prime is 68240849. The next prime is 68240863. The reversal of 68240850 is 5804286.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41341 + ... + 42959.

It is an arithmetic number, because the mean of its divisors is an integer number (3540510).

Almost surely, 268240850 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68240850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84972240).

68240850 is an abundant number, since it is smaller than the sum of its proper divisors (101703630).

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

68240850 is a wasteful number, since it uses less digits than its factorization.

68240850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1915 (or 1910 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 68240850 is about 8260.8020191747. The cubic root of 68240850 is about 408.6468377725.

The spelling of 68240850 in words is "sixty-eight million, two hundred forty thousand, eight hundred fifty".

Divisors: 1 2 3 5 6 10 15 25 30 50 75 150 281 562 843 1405 1619 1686 2810 3238 4215 4857 7025 8095 8430 9714 14050 16190 21075 24285 40475 42150 48570 80950 121425 242850 454939 909878 1364817 2274695 2729634 4549390 6824085 11373475 13648170 22746950 34120425 68240850