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68594740 = 22523149119
BaseRepresentation
bin1000001011010…
…10110000110100
311210001222021221
410011222300310
5120030012430
610450120124
71462021444
oct405526064
9153058257
1068594740
11357a1275
121ab80044
1311299006
149178124
15604e57a
hex416ac34

68594740 has 24 divisors (see below), whose sum is σ = 150312960. Its totient is φ = 26244768.

The previous prime is 68594737. The next prime is 68594767. The reversal of 68594740 is 4749586.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 74100 + ... + 75019.

It is an arithmetic number, because the mean of its divisors is an integer number (6263040).

Almost surely, 268594740 is an apocalyptic number.

It is an amenable number.

68594740 is an abundant number, since it is smaller than the sum of its proper divisors (81718220).

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

68594740 is a wasteful number, since it uses less digits than its factorization.

68594740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149151 (or 149149 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 68594740 is about 8282.1941537252. The cubic root of 68594740 is about 409.3520202706.

The spelling of 68594740 in words is "sixty-eight million, five hundred ninety-four thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 23 46 92 115 230 460 149119 298238 596476 745595 1491190 2982380 3429737 6859474 13718948 17148685 34297370 68594740