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68182500 = 223549091
BaseRepresentation
bin1000001000001…
…10000111100100
311202022000210210
410010012013210
5114423320000
610433215420
71455353541
oct404060744
9152260723
1068182500
113553a581
121aa01570
1311183499
1490abbc8
155ebc350
hex41061e4

68182500 has 60 divisors (see below), whose sum is σ = 198823856. Its totient is φ = 18180000.

The previous prime is 68182493. The next prime is 68182501. The reversal of 68182500 is 528186.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (68182501) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2955 + ... + 12045.

Almost surely, 268182500 is an apocalyptic number.

68182500 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68182500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99411928).

68182500 is an abundant number, since it is smaller than the sum of its proper divisors (130641356).

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

68182500 is a wasteful number, since it uses less digits than its factorization.

68182500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9118 (or 9101 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 68182500 is about 8257.2695244857. The cubic root of 68182500 is about 408.5303320803.

The spelling of 68182500 in words is "sixty-eight million, one hundred eighty-two thousand, five hundred".

Divisors: 1 2 3 4 5 6 10 12 15 20 25 30 50 60 75 100 125 150 250 300 375 500 625 750 1250 1500 1875 2500 3750 7500 9091 18182 27273 36364 45455 54546 90910 109092 136365 181820 227275 272730 454550 545460 681825 909100 1136375 1363650 2272750 2727300 3409125 4545500 5681875 6818250 11363750 13636500 17045625 22727500 34091250 68182500