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244242130131 = 32257229745971
BaseRepresentation
bin1110001101110111110…
…1110010010011010011
3212100102122122202112200
43203131331302103103
513000201441131011
6304111524254243
723434355565066
oct3433575622323
9770378582480
10244242130131
119464535140a
123b404241383
131a05520b6bc
14bb6dc308dd
1565475ad856
hex38ddf724d3

244242130131 has 24 divisors (see below), whose sum is σ = 354328822224. Its totient is φ = 162120376320.

The previous prime is 244242130129. The next prime is 244242130169. The reversal of 244242130131 is 131031242442.

244242130131 is a `hidden beast` number, since 2 + 442 + 4 + 213 + 0 + 1 + 3 + 1 = 666.

It is not a de Polignac number, because 244242130131 - 21 = 244242130129 is a prime.

It is a super-2 number, since 2×2442421301312 (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 244242130095 and 244242130104.

It is not an unprimeable number, because it can be changed into a prime (244242130331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5289976 + ... + 5335946.

It is an arithmetic number, because the mean of its divisors is an integer number (14763700926).

Almost surely, 2244242130131 is an apocalyptic number.

244242130131 is a deficient number, since it is larger than the sum of its proper divisors (110086692093).

244242130131 is a wasteful number, since it uses less digits than its factorization.

244242130131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48531 (or 48528 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 244242130131 its reverse (131031242442), we get a palindrome (375273372573).

The spelling of 244242130131 in words is "two hundred forty-four billion, two hundred forty-two million, one hundred thirty thousand, one hundred thirty-one".

Divisors: 1 3 9 257 771 2297 2313 6891 20673 45971 137913 413739 590329 1770987 5312961 11814547 35443641 105595387 106330923 316786161 950358483 27138014459 81414043377 244242130131