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68476291 = 1331116937
BaseRepresentation
bin1000001010011…
…01110110000011
311202211221210221
410011031312003
5120012220131
610443403511
71461016222
oct405156603
9152757727
1068476291
1135720284
121ab23597
1311257120
149146cb9
156029411
hex414dd83

68476291 has 8 divisors (see below), whose sum is σ = 73985184. Its totient is φ = 63001920.

The previous prime is 68476259. The next prime is 68476301. The reversal of 68476291 is 19267486.

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 68476291 - 25 = 68476259 is a prime.

It is a super-3 number, since 3×684762913 (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (68476201) 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, 4426 + ... + 12511.

It is an arithmetic number, because the mean of its divisors is an integer number (9248148).

Almost surely, 268476291 is an apocalyptic number.

68476291 is a deficient number, since it is larger than the sum of its proper divisors (5508893).

68476291 is a wasteful number, since it uses less digits than its factorization.

68476291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17261.

The product of its digits is 145152, while the sum is 43.

The square root of 68476291 is about 8275.0402415940. The cubic root of 68476291 is about 409.1162622836.

The spelling of 68476291 in words is "sixty-eight million, four hundred seventy-six thousand, two hundred ninety-one".

Divisors: 1 13 311 4043 16937 220181 5267407 68476291