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68459500 = 2253235953
BaseRepresentation
bin1000001010010…
…01101111101100
311202211002210001
410011021233230
5120011201000
610443154044
71460616244
oct405115754
9152732701
1068459500
11357096aa
121ab15924
131124c5a5
149140b24
15602446a
hex4149bec

68459500 has 48 divisors (see below), whose sum is σ = 156042432. Its totient is φ = 26188800.

The previous prime is 68459471. The next prime is 68459513. The reversal of 68459500 is 595486.

It is a self number, because there is not a number n which added to its sum of digits gives 68459500.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8524 + ... + 14476.

It is an arithmetic number, because the mean of its divisors is an integer number (3250884).

Almost surely, 268459500 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 68459500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78021216).

68459500 is an abundant number, since it is smaller than the sum of its proper divisors (87582932).

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

68459500 is a wasteful number, since it uses less digits than its factorization.

68459500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5995 (or 5983 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 68459500 is about 8274.0256223920. The cubic root of 68459500 is about 409.0828198924.

The spelling of 68459500 in words is "sixty-eight million, four hundred fifty-nine thousand, five hundred".

Divisors: 1 2 4 5 10 20 23 25 46 50 92 100 115 125 230 250 460 500 575 1150 2300 2875 5750 5953 11500 11906 23812 29765 59530 119060 136919 148825 273838 297650 547676 595300 684595 744125 1369190 1488250 2738380 2976500 3422975 6845950 13691900 17114875 34229750 68459500