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68625360 = 2433531771
BaseRepresentation
bin1000001011100…
…10001111010000
311210010112022000
410011302033100
5120032002420
610450514000
71462206636
oct405621720
9153115260
1068625360
1135812281
121ab95900
13112a9c2b
149185356
156058690
hex41723d0

68625360 has 80 divisors (see below), whose sum is σ = 236383680. Its totient is φ = 18299520.

The previous prime is 68625331. The next prime is 68625373. The reversal of 68625360 is 6352686.

68625360 is a `hidden beast` number, since 68 + 62 + 536 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (36).

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 15 ways as a sum of consecutive naturals, for example, 13726 + ... + 18045.

It is an arithmetic number, because the mean of its divisors is an integer number (2954796).

Almost surely, 268625360 is an apocalyptic number.

68625360 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68625360 is an abundant number, since it is smaller than the sum of its proper divisors (167758320).

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

68625360 is a wasteful number, since it uses less digits than its factorization.

68625360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31793 (or 31781 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 68625360 is about 8284.0424914410. The cubic root of 68625360 is about 409.4129214138.

The spelling of 68625360 in words is "sixty-eight million, six hundred twenty-five thousand, three hundred sixty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 36 40 45 48 54 60 72 80 90 108 120 135 144 180 216 240 270 360 432 540 720 1080 2160 31771 63542 95313 127084 158855 190626 254168 285939 317710 381252 476565 508336 571878 635420 762504 857817 953130 1143756 1270840 1429695 1525008 1715634 1906260 2287512 2541680 2859390 3431268 3812520 4289085 4575024 5718780 6862536 7625040 8578170 11437560 13725072 17156340 22875120 34312680 68625360