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668114029 = 1161995699
BaseRepresentation
bin100111110100101…
…001110001101101
31201120011201011001
4213310221301231
52332014122104
6150144000301
722361606212
oct4764516155
91646151131
10668114029
11313150a60
12167900091
13a8556b5b
1464a37b09
153d9c4aa4
hex27d29c6d

668114029 has 8 divisors (see below), whose sum is σ = 740800800. Its totient is φ = 597418800.

The previous prime is 668114023. The next prime is 668114033. The reversal of 668114029 is 920411866.

It is a happy number.

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

It is not a de Polignac number, because 668114029 - 25 = 668113997 is a prime.

It is a super-2 number, since 2×6681140292 = 892752711493225682, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (668114023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 497179 + ... + 498520.

It is an arithmetic number, because the mean of its divisors is an integer number (92600100).

Almost surely, 2668114029 is an apocalyptic number.

It is an amenable number.

668114029 is a deficient number, since it is larger than the sum of its proper divisors (72686771).

668114029 is a wasteful number, since it uses less digits than its factorization.

668114029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995771.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 668114029 is about 25847.9018297424. The cubic root of 668114029 is about 874.2122015105.

The spelling of 668114029 in words is "six hundred sixty-eight million, one hundred fourteen thousand, twenty-nine".

Divisors: 1 11 61 671 995699 10952689 60737639 668114029