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68647200 = 2535228603
BaseRepresentation
bin1000001011101…
…11100100100000
311210011122020220
410011313210200
5120033202300
610451203040
71462330416
oct405674440
9153148226
1068647200
1135827726
121aba6480
13112b6b5b
14918d2b6
15605eda0
hex4177920

68647200 has 72 divisors (see below), whose sum is σ = 223454448. Its totient is φ = 18305280.

The previous prime is 68647193. The next prime is 68647217. The reversal of 68647200 is 274686.

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 11 ways as a sum of consecutive naturals, for example, 11902 + ... + 16701.

It is an arithmetic number, because the mean of its divisors is an integer number (3103534).

Almost surely, 268647200 is an apocalyptic number.

68647200 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68647200 is an abundant number, since it is smaller than the sum of its proper divisors (154807248).

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

68647200 is a wasteful number, since it uses less digits than its factorization.

68647200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28626 (or 28613 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 68647200 is about 8285.3605835836. The cubic root of 68647200 is about 409.4563486532.

The spelling of 68647200 in words is "sixty-eight million, six hundred forty-seven thousand, two hundred".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 25 30 32 40 48 50 60 75 80 96 100 120 150 160 200 240 300 400 480 600 800 1200 2400 28603 57206 85809 114412 143015 171618 228824 286030 343236 429045 457648 572060 686472 715075 858090 915296 1144120 1372944 1430150 1716180 2145225 2288240 2745888 2860300 3432360 4290450 4576480 5720600 6864720 8580900 11441200 13729440 17161800 22882400 34323600 68647200