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31340401001 = 7131790319237
BaseRepresentation
bin11101001100000010…
…001001000101101001
32222220011111022212122
4131030002021011221
51003141120313001
622221513321025
72156434004330
oct351402110551
988804438778
1031340401001
1112322926158
1260a7a06175
132c55ca72a0
141734484d17
15c36649b1b
hex74c089169

31340401001 has 16 divisors (see below), whose sum is σ = 38576961024. Its totient is φ = 24794126784.

The previous prime is 31340400977. The next prime is 31340401003. The reversal of 31340401001 is 10010404313.

It is not a de Polignac number, because 31340401001 - 218 = 31340138857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31340401003) 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, 1619555 + ... + 1638791.

It is an arithmetic number, because the mean of its divisors is an integer number (2411060064).

Almost surely, 231340401001 is an apocalyptic number.

It is an amenable number.

31340401001 is a deficient number, since it is larger than the sum of its proper divisors (7236560023).

31340401001 is a wasteful number, since it uses less digits than its factorization.

31340401001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37160.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 31340401001 its reverse (10010404313), we get a palindrome (41350805314).

The spelling of 31340401001 in words is "thirty-one billion, three hundred forty million, four hundred one thousand, one".

Divisors: 1 7 13 91 17903 19237 125321 134659 232739 250081 1629173 1750567 344400011 2410800077 4477200143 31340401001