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68810359 = 293176541
BaseRepresentation
bin1000001100111…
…11011001110111
311210110221001211
410012133121313
5120103412414
610454502251
71463610202
oct406373167
9153427054
1068810359
1135929272
121b064987
13113431b7
1491d2939
1560933c4
hex419f677

68810359 has 8 divisors (see below), whose sum is σ = 73480320. Its totient is φ = 64293600.

The previous prime is 68810353. The next prime is 68810369. The reversal of 68810359 is 95301886.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68810359 - 23 = 68810351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68810351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37372 + ... + 39169.

It is an arithmetic number, because the mean of its divisors is an integer number (9185040).

Almost surely, 268810359 is an apocalyptic number.

68810359 is a deficient number, since it is larger than the sum of its proper divisors (4669961).

68810359 is a wasteful number, since it uses less digits than its factorization.

68810359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76601.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 68810359 is about 8295.2009620021. The cubic root of 68810359 is about 409.7804872933.

It can be divided in two parts, 68810 and 359, that added together give a square (69169 = 2632).

The spelling of 68810359 in words is "sixty-eight million, eight hundred ten thousand, three hundred fifty-nine".

Divisors: 1 29 31 899 76541 2219689 2372771 68810359