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20314518 = 23739871
BaseRepresentation
bin100110101111…
…1100110010110
31102020002021120
41031133212112
520200031033
62003224410
7334446000
oct115374626
942202246
1020314518
1110515664
126978106
134293633
1429ab370
151bb41b3
hex135f996

20314518 has 32 divisors (see below), whose sum is σ = 47385600. Its totient is φ = 5803560.

The previous prime is 20314501. The next prime is 20314519. The reversal of 20314518 is 81541302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20314519) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2878 + ... + 6993.

It is an arithmetic number, because the mean of its divisors is an integer number (1480800).

Almost surely, 220314518 is an apocalyptic number.

20314518 is an abundant number, since it is smaller than the sum of its proper divisors (27071082).

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

20314518 is an equidigital number, since it uses as much as digits as its factorization.

20314518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9897 (or 9883 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 20314518 is about 4507.1629657690. The cubic root of 20314518 is about 272.8572560798.

The spelling of 20314518 in words is "twenty million, three hundred fourteen thousand, five hundred eighteen".

Divisors: 1 2 3 6 7 14 21 42 49 98 147 294 343 686 1029 2058 9871 19742 29613 59226 69097 138194 207291 414582 483679 967358 1451037 2902074 3385753 6771506 10157259 20314518