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68995060 = 22529472531
BaseRepresentation
bin1000001110011…
…00011111110100
311210211022102121
410013030133310
5120130320220
610502445324
71465306531
oct407143764
9153738377
1068995060
1135a45012
121b133844
13113a92a4
14923dd88
1560cceaa
hex41cc7f4

68995060 has 48 divisors (see below), whose sum is σ = 153135360. Its totient is φ = 26069120.

The previous prime is 68995049. The next prime is 68995067. The reversal of 68995060 is 6059986.

It is a junction number, because it is equal to n+sod(n) for n = 68994998 and 68995016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68995067) 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, 25995 + ... + 28525.

It is an arithmetic number, because the mean of its divisors is an integer number (3190320).

Almost surely, 268995060 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68995060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76567680).

68995060 is an abundant number, since it is smaller than the sum of its proper divisors (84140300).

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

68995060 is a wasteful number, since it uses less digits than its factorization.

68995060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2616 (or 2614 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 43.

The square root of 68995060 is about 8306.3265045386. The cubic root of 68995060 is about 410.1468044585.

The spelling of 68995060 in words is "sixty-eight million, nine hundred ninety-five thousand, sixty".

Divisors: 1 2 4 5 10 20 29 47 58 94 116 145 188 235 290 470 580 940 1363 2531 2726 5062 5452 6815 10124 12655 13630 25310 27260 50620 73399 118957 146798 237914 293596 366995 475828 594785 733990 1189570 1467980 2379140 3449753 6899506 13799012 17248765 34497530 68995060