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68374400 = 275223929
BaseRepresentation
bin1000001001101…
…00111110000000
311202122210001012
410010310332000
5120000440100
610441300052
71460113163
oct404647600
9152583035
1068374400
1135660776
121aa94628
131121c933
14911bada
156009135
hex4134f80

68374400 has 96 divisors (see below), whose sum is σ = 176439600. Its totient is φ = 26132480.

The previous prime is 68374381. The next prime is 68374417. The reversal of 68374400 is 447386.

It is a happy number.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73136 + ... + 74064.

Almost surely, 268374400 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 68374400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88219800).

68374400 is an abundant number, since it is smaller than the sum of its proper divisors (108065200).

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

68374400 is a wasteful number, since it uses less digits than its factorization.

68374400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 976 (or 959 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 68374400 is about 8268.8814237477. The cubic root of 68374400 is about 408.9132433159.

The spelling of 68374400 in words is "sixty-eight million, three hundred seventy-four thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 20 23 25 32 40 46 50 64 80 92 100 115 128 160 184 200 230 320 368 400 460 575 640 736 800 920 929 1150 1472 1600 1840 1858 2300 2944 3200 3680 3716 4600 4645 7360 7432 9200 9290 14720 14864 18400 18580 21367 23225 29728 36800 37160 42734 46450 59456 73600 74320 85468 92900 106835 118912 148640 170936 185800 213670 297280 341872 371600 427340 534175 594560 683744 743200 854680 1068350 1367488 1486400 1709360 2136700 2734976 2972800 3418720 4273400 6837440 8546800 13674880 17093600 34187200 68374400