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668095654 = 21423234749
BaseRepresentation
bin100111110100100…
…101010010100110
31201120010202221111
4213310211102212
52332013030104
6150143335234
722361501512
oct4764452246
91646122844
10668095654
11313139176
121678b151a
13a854b695
1464a31142
153d9be404
hex27d254a6

668095654 has 8 divisors (see below), whose sum is σ = 1002852000. Its totient is φ = 333811656.

The previous prime is 668095639. The next prime is 668095669. The reversal of 668095654 is 456590866.

It is a happy number.

668095654 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (668095639) and next prime (668095669).

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

It is a junction number, because it is equal to n+sod(n) for n = 668095598 and 668095607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114529 + ... + 120220.

It is an arithmetic number, because the mean of its divisors is an integer number (125356500).

Almost surely, 2668095654 is an apocalyptic number.

668095654 is a deficient number, since it is larger than the sum of its proper divisors (334756346).

668095654 is a wasteful number, since it uses less digits than its factorization.

668095654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236174.

The product of its (nonzero) digits is 1555200, while the sum is 49.

The square root of 668095654 is about 25847.5463825873. The cubic root of 668095654 is about 874.2041870121.

The spelling of 668095654 in words is "six hundred sixty-eight million, ninety-five thousand, six hundred fifty-four".

Divisors: 1 2 1423 2846 234749 469498 334047827 668095654