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68927550 = 23522319979
BaseRepresentation
bin1000001101111…
…00000000111110
311210200212211020
410012330000332
5120121140200
610501205010
71464605646
oct406740076
9153625736
1068927550
11359a931a
121b100766
1311384643
149223526
1560b7ea0
hex41bc03e

68927550 has 48 divisors (see below), whose sum is σ = 178381440. Its totient is φ = 17580640.

The previous prime is 68927533. The next prime is 68927557. The reversal of 68927550 is 5572986.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68927557) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6540 + ... + 13439.

It is an arithmetic number, because the mean of its divisors is an integer number (3716280).

Almost surely, 268927550 is an apocalyptic number.

68927550 is an abundant number, since it is smaller than the sum of its proper divisors (109453890).

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

68927550 is a wasteful number, since it uses less digits than its factorization.

68927550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20017 (or 20012 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 42.

The square root of 68927550 is about 8302.2617400320. The cubic root of 68927550 is about 410.0129878892.

The spelling of 68927550 in words is "sixty-eight million, nine hundred twenty-seven thousand, five hundred fifty".

Divisors: 1 2 3 5 6 10 15 23 25 30 46 50 69 75 115 138 150 230 345 575 690 1150 1725 3450 19979 39958 59937 99895 119874 199790 299685 459517 499475 599370 919034 998950 1378551 1498425 2297585 2757102 2996850 4595170 6892755 11487925 13785510 22975850 34463775 68927550