Search a number
-
+
32131242113 = 37868411949
BaseRepresentation
bin11101111011001010…
…111101100010000001
310001221021121012221012
4131323022331202001
51011301044221423
622432204010305
72215146023465
oct357312754201
9101837535835
1032131242113
1112699280853
126288830995
133050aa13c9
1417ab5084a5
15c80cb3078
hex77b2bd881

32131242113 has 4 divisors (see below), whose sum is σ = 32999654100. Its totient is φ = 31262830128.

The previous prime is 32131242097. The next prime is 32131242119. The reversal of 32131242113 is 31124213123.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31124213123 = 44237036901.

It can be written as a sum of positive squares in 2 ways, for example, as 18454407409 + 13676834704 = 135847^2 + 116948^2 .

It is a cyclic number.

It is not a de Polignac number, because 32131242113 - 24 = 32131242097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32131242119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 434205938 + ... + 434206011.

It is an arithmetic number, because the mean of its divisors is an integer number (8249913525).

Almost surely, 232131242113 is an apocalyptic number.

It is an amenable number.

32131242113 is a deficient number, since it is larger than the sum of its proper divisors (868411987).

32131242113 is an equidigital number, since it uses as much as digits as its factorization.

32131242113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868411986.

The product of its digits is 864, while the sum is 23.

Adding to 32131242113 its reverse (31124213123), we get a palindrome (63255455236).

The spelling of 32131242113 in words is "thirty-two billion, one hundred thirty-one million, two hundred forty-two thousand, one hundred thirteen".

Divisors: 1 37 868411949 32131242113