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31010241361 = 112819112851
BaseRepresentation
bin11100111000010110…
…101011101101010001
32222001011020110222211
4130320112223231101
51002002110210421
622125041032121
72145314462641
oct347026535521
988034213884
1031010241361
1112173522350
126015325641
132c02779958
1417026a0521
15c1767e9e1
hex7385abb51

31010241361 has 4 divisors (see below), whose sum is σ = 33829354224. Its totient is φ = 28191128500.

The previous prime is 31010241337. The next prime is 31010241389. The reversal of 31010241361 is 16314201013.

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 31010241361 - 27 = 31010241233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31010241961) 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, 1409556415 + ... + 1409556436.

It is an arithmetic number, because the mean of its divisors is an integer number (8457338556).

Almost surely, 231010241361 is an apocalyptic number.

It is an amenable number.

31010241361 is a deficient number, since it is larger than the sum of its proper divisors (2819112863).

31010241361 is a wasteful number, since it uses less digits than its factorization.

31010241361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2819112862.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 31010241361 its reverse (16314201013), we get a palindrome (47324442374).

The spelling of 31010241361 in words is "thirty-one billion, ten million, two hundred forty-one thousand, three hundred sixty-one".

Divisors: 1 11 2819112851 31010241361