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669414 = 23315961
BaseRepresentation
bin10100011011011100110
31021000021010
42203123212
5132410124
622203050
75455434
oct2433346
91230233
10669414
11417a39
12283486
131a5905
14135d54
15d3529
hexa36e6

669414 has 32 divisors (see below), whose sum is σ = 1428480. Its totient is φ = 208800.

The previous prime is 669413. The next prime is 669419. The reversal of 669414 is 414966.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (669413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10944 + ... + 11004.

It is an arithmetic number, because the mean of its divisors is an integer number (44640).

2669414 is an apocalyptic number.

669414 is an abundant number, since it is smaller than the sum of its proper divisors (759066).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

669414 is a wasteful number, since it uses less digits than its factorization.

669414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156.

The product of its digits is 5184, while the sum is 30.

The square root of 669414 is about 818.1772424114. The cubic root of 669414 is about 87.4778828453.

The spelling of 669414 in words is "six hundred sixty-nine thousand, four hundred fourteen".

Divisors: 1 2 3 6 31 59 61 62 93 118 122 177 183 186 354 366 1829 1891 3599 3658 3782 5487 5673 7198 10797 10974 11346 21594 111569 223138 334707 669414