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68996801 = 671029803
BaseRepresentation
bin1000001110011…
…00111011000001
311210211101211002
410013030323001
5120130344201
610502501345
71465314566
oct407147301
9153741732
1068996801
1135a46355
121b134855
13113aa013
14924086d
1560cd76b
hex41ccec1

68996801 has 4 divisors (see below), whose sum is σ = 70026672. Its totient is φ = 67966932.

The previous prime is 68996797. The next prime is 68996813. The reversal of 68996801 is 10869986.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10869986 = 25434993.

It is a cyclic number.

It is not a de Polignac number, because 68996801 - 22 = 68996797 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68996861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 514835 + ... + 514968.

It is an arithmetic number, because the mean of its divisors is an integer number (17506668).

Almost surely, 268996801 is an apocalyptic number.

It is an amenable number.

68996801 is a deficient number, since it is larger than the sum of its proper divisors (1029871).

68996801 is a wasteful number, since it uses less digits than its factorization.

68996801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1029870.

The product of its (nonzero) digits is 186624, while the sum is 47.

The square root of 68996801 is about 8306.4313035142. The cubic root of 68996801 is about 410.1502542687.

The spelling of 68996801 in words is "sixty-eight million, nine hundred ninety-six thousand, eight hundred one".

Divisors: 1 67 1029803 68996801