Search a number
-
+
3131101000100 = 225231311010001
BaseRepresentation
bin101101100100000100001…
…010011011000110100100
3102002022220210221010021102
4231210010022123012210
5402244443324000400
610354224040535232
7442133413241213
oct55440412330644
912068823833242
103131101000100
11aa798a983547
124269b3481518
13199352845688
14ab7906c107a
15566a90899d5
hex2d90429b1a4

3131101000100 has 18 divisors (see below), whose sum is σ = 6794489170434. Its totient is φ = 1252440400000.

The previous prime is 3131101000091. The next prime is 3131101000123. The reversal of 3131101000100 is 10001011313.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 49194352804 + 3081906647296 = 221798^2 + 1755536^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15655504901 + ... + 15655505100.

Almost surely, 23131101000100 is an apocalyptic number.

It is an amenable number.

3131101000100 is an abundant number, since it is smaller than the sum of its proper divisors (3663388170334).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3131101000100 is a wasteful number, since it uses less digits than its factorization.

3131101000100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31311010015 (or 31311010008 counting only the distinct ones).

The product of its (nonzero) digits is 9, while the sum is 11.

Adding to 3131101000100 its reverse (10001011313), we get a palindrome (3141102011413).

The spelling of 3131101000100 in words is "three trillion, one hundred thirty-one billion, one hundred one million, one hundred", and thus it is an aban number.

Divisors: 1 2 4 5 10 20 25 50 100 31311010001 62622020002 125244040004 156555050005 313110100010 626220200020 782775250025 1565550500050 3131101000100