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68936560 = 24571119231
BaseRepresentation
bin1000001101111…
…10001101110000
311210201100011221
410012332031300
5120121432220
610501314424
71464644140
oct406761560
9153640157
1068936560
1135a05070
121b105a14
1311388784
149226920
1560ba9aa
hex41be370

68936560 has 240 divisors, whose sum is σ = 217700352. Its totient is φ = 19699200.

The previous prime is 68936531. The next prime is 68936573. The reversal of 68936560 is 6563986.

It is a super-3 number, since 3×689365603 (a number of 24 digits) contains 333 as substring.

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 2223745 + ... + 2223775.

Almost surely, 268936560 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 68936560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108850176).

68936560 is an abundant number, since it is smaller than the sum of its proper divisors (148763792).

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

68936560 is a wasteful number, since it uses less digits than its factorization.

68936560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100 (or 75 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 43.

The square root of 68936560 is about 8302.8043455209. The cubic root of 68936560 is about 410.0308523283.

It can be divided in two parts, 68936 and 560, that added together give a palindrome (69496).

The spelling of 68936560 in words is "sixty-eight million, nine hundred thirty-six thousand, five hundred sixty".