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31332102233 = 113929329837
BaseRepresentation
bin11101001011100010…
…011111000001011001
32222212120212201002212
4131023202133001121
51003132004232413
622221015404505
72156303321555
oct351342370131
988776781085
1031332102233
1112319178173
1260a5083735
132c5435cb83
141733324865
15c35a5aca8
hex74b89f059

31332102233 has 8 divisors (see below), whose sum is σ = 31613838408. Its totient is φ = 31050444544.

The previous prime is 31332102227. The next prime is 31332102271. The reversal of 31332102233 is 33220123313.

It can be written as a sum of positive squares in 4 ways, for example, as 6591328969 + 24740773264 = 81187^2 + 157292^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 31332102233 - 26 = 31332102169 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31332102199 and 31332102208.

It is not an unprimeable number, because it can be changed into a prime (31332102223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1035191 + ... + 1065027.

It is an arithmetic number, because the mean of its divisors is an integer number (3951729801).

Almost surely, 231332102233 is an apocalyptic number.

It is an amenable number.

31332102233 is a deficient number, since it is larger than the sum of its proper divisors (281736175).

31332102233 is a wasteful number, since it uses less digits than its factorization.

31332102233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39243.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 31332102233 its reverse (33220123313), we get a palindrome (64552225546).

The spelling of 31332102233 in words is "thirty-one billion, three hundred thirty-two million, one hundred two thousand, two hundred thirty-three".

Divisors: 1 113 9293 29837 1050109 3371581 277275241 31332102233