Search a number
-
+
31313100341 = 311010100011
BaseRepresentation
bin11101001010011001…
…111111111000110101
32222211021010022102002
4131022121333320311
51003112123202331
622215100225045
72155652650505
oct351231777065
988737108362
1031313100341
1112309479826
12609a83b185
132c50438b53
1417309b9a05
15c340559cb
hex74a67fe35

31313100341 has 4 divisors (see below), whose sum is σ = 32323200384. Its totient is φ = 30303000300.

The previous prime is 31313100323. The next prime is 31313100353. The reversal of 31313100341 is 14300131313.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31313100341 - 214 = 31313083957 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31313100041) 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, 505049975 + ... + 505050036.

It is an arithmetic number, because the mean of its divisors is an integer number (8080800096).

Almost surely, 231313100341 is an apocalyptic number.

31313100341 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

31313100341 is a deficient number, since it is larger than the sum of its proper divisors (1010100043).

31313100341 is a wasteful number, since it uses less digits than its factorization.

31313100341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010100042.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 31313100341 its reverse (14300131313), we get a palindrome (45613231654).

The spelling of 31313100341 in words is "thirty-one billion, three hundred thirteen million, one hundred thousand, three hundred forty-one".

Divisors: 1 31 1010100011 31313100341