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20313112001 = 713217170847
BaseRepresentation
bin10010111010110000…
…010111110111000001
31221102122201000011112
4102322300113313001
5313100124041001
613155352253105
71316243413610
oct227260276701
957378630145
1020313112001
118684249776
123b2a9a1195
131bb9516900
14da9b0d877
157dd4b9cbb
hex4bac17dc1

20313112001 has 12 divisors (see below), whose sum is σ = 25138121472. Its totient is φ = 16071911856.

The previous prime is 20313111991. The next prime is 20313112019. The reversal of 20313112001 is 10021131302.

It is a de Polignac number, because none of the positive numbers 2k-20313112001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20313112051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8584241 + ... + 8586606.

It is an arithmetic number, because the mean of its divisors is an integer number (2094843456).

Almost surely, 220313112001 is an apocalyptic number.

It is an amenable number.

20313112001 is a deficient number, since it is larger than the sum of its proper divisors (4825009471).

20313112001 is a wasteful number, since it uses less digits than its factorization.

20313112001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17170880 (or 17170867 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 20313112001 its reverse (10021131302), we get a palindrome (30334243303).

The spelling of 20313112001 in words is "twenty billion, three hundred thirteen million, one hundred twelve thousand, one".

Divisors: 1 7 13 91 169 1183 17170847 120195929 223221011 1562547077 2901873143 20313112001