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68624824 = 23233153227
BaseRepresentation
bin1000001011100…
…10000110111000
311210010111120011
410011302012320
5120031443244
610450511304
71462205242
oct405620670
9153114504
1068624824
1135811934
121ab95534
13112a9908
149185092
156058434
hex41721b8

68624824 has 64 divisors (see below), whose sum is σ = 141834240. Its totient is φ = 31025280.

The previous prime is 68624821. The next prime is 68624833. The reversal of 68624824 is 42842686.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68624821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 302199 + ... + 302425.

It is an arithmetic number, because the mean of its divisors is an integer number (2216160).

Almost surely, 268624824 is an apocalyptic number.

It is an amenable number.

68624824 is an abundant number, since it is smaller than the sum of its proper divisors (73209416).

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

68624824 is a wasteful number, since it uses less digits than its factorization.

68624824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340 (or 336 counting only the distinct ones).

The product of its digits is 147456, while the sum is 40.

The square root of 68624824 is about 8284.0101400228. The cubic root of 68624824 is about 409.4118555013.

The spelling of 68624824 in words is "sixty-eight million, six hundred twenty-four thousand, eight hundred twenty-four".

Divisors: 1 2 4 8 23 31 46 53 62 92 106 124 184 212 227 248 424 454 713 908 1219 1426 1643 1816 2438 2852 3286 4876 5221 5704 6572 7037 9752 10442 12031 13144 14074 20884 24062 28148 37789 41768 48124 56296 75578 96248 151156 161851 276713 302312 323702 372961 553426 647404 745922 1106852 1294808 1491844 2213704 2983688 8578103 17156206 34312412 68624824