Search a number
-
+
3131310101031 = 32777364299269
BaseRepresentation
bin101101100100010000101…
…000000101001000100111
3102002100110101101112211100
4231210100220011020213
5402300410341213111
610354300510411143
7442141532462010
oct55442050051047
912070411345740
103131310101031
11aa7a87a12132
12426a51500ab3
13199386c68238
14ab7b0392007
15566bc5e0756
hex2d910a05227

3131310101031 has 24 divisors (see below), whose sum is σ = 5175834037920. Its totient is φ = 1787005256256.

The previous prime is 3131310100921. The next prime is 3131310101039. The reversal of 3131310101031 is 1301010131313.

3131310101031 is a `hidden beast` number, since 313 + 1 + 310 + 1 + 0 + 10 + 31 = 666.

It is not a de Polignac number, because 3131310101031 - 27 = 3131310100903 is a prime.

It is a super-2 number, since 2×31313101010312 (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3131310100995 and 3131310101013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3131310101039) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32100936 + ... + 32198333.

It is an arithmetic number, because the mean of its divisors is an integer number (215659751580).

Almost surely, 23131310101031 is an apocalyptic number.

3131310101031 is a deficient number, since it is larger than the sum of its proper divisors (2044523936889).

3131310101031 is a wasteful number, since it uses less digits than its factorization.

3131310101031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64300055 (or 64300052 counting only the distinct ones).

The product of its (nonzero) digits is 81, while the sum is 18.

Adding to 3131310101031 its reverse (1301010131313), we get a palindrome (4432320232344).

The spelling of 3131310101031 in words is "three trillion, one hundred thirty-one billion, three hundred ten million, one hundred one thousand, thirty-one".

Divisors: 1 3 7 9 21 63 773 2319 5411 6957 16233 48699 64299269 192897807 450094883 578693421 1350284649 4050853947 49703334937 149110004811 347923344559 447330014433 1043770033677 3131310101031