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31332230301013 = 277113112744769
BaseRepresentation
bin1110001111111000110100…
…11101010000010101010101
311002221022222000001010220121
413013330122131100111111
513101321401424113023
6150345454454031541
76412451606200015
oct707743235202525
9132838860033817
1031332230301013
119a8aa191a2454
1236204906485b1
1314638029ac105
147a46b9267c45
1539505352cd5d
hex1c7f1a750555

31332230301013 has 4 divisors (see below), whose sum is σ = 31445343046060. Its totient is φ = 31219117555968.

The previous prime is 31332230300953. The next prime is 31332230301023. The reversal of 31332230301013 is 31010303223313.

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

It can be written as a sum of positive squares in 2 ways, for example, as 21345157686724 + 9987072614289 = 4620082^2 + 3160233^2 .

It is a cyclic number.

It is not a de Polignac number, because 31332230301013 - 213 = 31332230292821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31332230301023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56556372108 + ... + 56556372661.

It is an arithmetic number, because the mean of its divisors is an integer number (7861335761515).

Almost surely, 231332230301013 is an apocalyptic number.

It is an amenable number.

31332230301013 is a deficient number, since it is larger than the sum of its proper divisors (113112745047).

31332230301013 is a wasteful number, since it uses less digits than its factorization.

31332230301013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113112745046.

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 31332230301013 its reverse (31010303223313), we get a palindrome (62342533524326).

The spelling of 31332230301013 in words is "thirty-one trillion, three hundred thirty-two billion, two hundred thirty million, three hundred one thousand, thirteen".

Divisors: 1 277 113112744769 31332230301013