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68132624 = 2472326449
BaseRepresentation
bin1000000111110…
…01111100010000
311202012111101112
410003321330100
5114420220444
610432152452
71455055250
oct403717420
9152174345
1068132624
113550605a
121a998728
1311166881
149097960
155eac69e
hex40f9f10

68132624 has 40 divisors (see below), whose sum is σ = 157430400. Its totient is φ = 27929088.

The previous prime is 68132621. The next prime is 68132639. The reversal of 68132624 is 42623186.

It is not an unprimeable number, because it can be changed into a prime (68132621) 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, 10649 + ... + 15800.

It is an arithmetic number, because the mean of its divisors is an integer number (3935760).

Almost surely, 268132624 is an apocalyptic number.

It is an amenable number.

68132624 is an abundant number, since it is smaller than the sum of its proper divisors (89297776).

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

68132624 is a wasteful number, since it uses less digits than its factorization.

68132624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26487 (or 26481 counting only the distinct ones).

The product of its digits is 13824, while the sum is 32.

The square root of 68132624 is about 8254.2488452917. The cubic root of 68132624 is about 408.4306934672.

The spelling of 68132624 in words is "sixty-eight million, one hundred thirty-two thousand, six hundred twenty-four".

Divisors: 1 2 4 7 8 14 16 23 28 46 56 92 112 161 184 322 368 644 1288 2576 26449 52898 105796 185143 211592 370286 423184 608327 740572 1216654 1481144 2433308 2962288 4258289 4866616 8516578 9733232 17033156 34066312 68132624