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20014387523 = 131981029909
BaseRepresentation
bin10010101000111100…
…110101000101000011
31220122211121020012222
4102220330311011003
5311442140400043
613110001441255
71305655326014
oct225074650503
956584536188
1020014387523
118540666639
123a6694022b
131b6c674570
14d7c18d00b
157c215dd68
hex4a8f35143

20014387523 has 8 divisors (see below), whose sum is σ = 22688374800. Its totient is φ = 17502460128.

The previous prime is 20014387501. The next prime is 20014387529. The reversal of 20014387523 is 32578341002.

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

It is not a de Polignac number, because 20014387523 - 210 = 20014386499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20014387529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40514708 + ... + 40515201.

It is an arithmetic number, because the mean of its divisors is an integer number (2836046850).

Almost surely, 220014387523 is an apocalyptic number.

20014387523 is a deficient number, since it is larger than the sum of its proper divisors (2673987277).

20014387523 is a wasteful number, since it uses less digits than its factorization.

20014387523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81029941.

The product of its (nonzero) digits is 40320, while the sum is 35.

The spelling of 20014387523 in words is "twenty billion, fourteen million, three hundred eighty-seven thousand, five hundred twenty-three".

Divisors: 1 13 19 247 81029909 1053388817 1539568271 20014387523