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20010240000131 = 64331120124417
BaseRepresentation
bin1001000110010111111110…
…01111110100000010000011
32121211221221000211102001212
410203023333033310002003
510110321432420001011
6110320324412520335
74133456254416443
oct443137717640203
977757830742055
1020010240000131
1164153278a5767
1222b2150a800ab
13b21c5a922104
144d2702216123
1524a7a3d5008b
hex1232ff3f4083

20010240000131 has 4 divisors (see below), whose sum is σ = 20041360125192. Its totient is φ = 19979119875072.

The previous prime is 20010240000073. The next prime is 20010240000133. The reversal of 20010240000131 is 13100004201002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20010240000131 - 26 = 20010240000067 is a prime.

It is a super-2 number, since 2×200102400001312 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20010240000133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15560061566 + ... + 15560062851.

It is an arithmetic number, because the mean of its divisors is an integer number (5010340031298).

Almost surely, 220010240000131 is an apocalyptic number.

20010240000131 is a deficient number, since it is larger than the sum of its proper divisors (31120125061).

20010240000131 is an equidigital number, since it uses as much as digits as its factorization.

20010240000131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31120125060.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 20010240000131 its reverse (13100004201002), we get a palindrome (33110244201133).

The spelling of 20010240000131 in words is "twenty trillion, ten billion, two hundred forty million, one hundred thirty-one", and thus it is an aban number.

Divisors: 1 643 31120124417 20010240000131