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20154305013 = 323292091377
BaseRepresentation
bin10010110001010010…
…100100100111110101
31221000120212202221020
4102301102210213311
5312234000230023
613131520411353
71312304523513
oct226122444765
957016782836
1020154305013
118602641727
123aa5776b59
131b9265318b
14d929b14b3
157ce59ade3
hex4b14a49f5

20154305013 has 8 divisors (see below), whose sum is σ = 28040772288. Its totient is φ = 12852020544.

The previous prime is 20154304997. The next prime is 20154305027. The reversal of 20154305013 is 31050345102.

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

It is not a de Polignac number, because 20154305013 - 24 = 20154304997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20154305033) 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, 146045620 + ... + 146045757.

It is an arithmetic number, because the mean of its divisors is an integer number (3505096536).

Almost surely, 220154305013 is an apocalyptic number.

20154305013 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

20154305013 is a deficient number, since it is larger than the sum of its proper divisors (7886467275).

20154305013 is a wasteful number, since it uses less digits than its factorization.

20154305013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292091403.

The product of its (nonzero) digits is 1800, while the sum is 24.

The spelling of 20154305013 in words is "twenty billion, one hundred fifty-four million, three hundred five thousand, thirteen".

Divisors: 1 3 23 69 292091377 876274131 6718101671 20154305013