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31244024241 = 338326951829
BaseRepresentation
bin11101000110010010…
…011111100110110001
32222122110010212211000
4131012102133212301
51002441432233431
622204151512213
72154153552453
oct350622374661
988573125730
1031244024241
1112283489941
12607b688669
132c3c031a11
1417257582d3
15c2ce5d9e6
hex74649f9b1

31244024241 has 32 divisors (see below), whose sum is σ = 47020176000. Its totient is φ = 20501498304.

The previous prime is 31244024143. The next prime is 31244024249. The reversal of 31244024241 is 14242044213.

31244024241 is a `hidden beast` number, since 3 + 12 + 4 + 402 + 4 + 241 = 666.

It is not a de Polignac number, because 31244024241 - 211 = 31244022193 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (31244024249) 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 31 ways as a sum of consecutive naturals, for example, 576915 + ... + 628743.

It is an arithmetic number, because the mean of its divisors is an integer number (1469380500).

Almost surely, 231244024241 is an apocalyptic number.

It is an amenable number.

31244024241 is a deficient number, since it is larger than the sum of its proper divisors (15776151759).

31244024241 is a wasteful number, since it uses less digits than its factorization.

31244024241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52190 (or 52184 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 31244024241 its reverse (14242044213), we get a palindrome (45486068454).

The spelling of 31244024241 in words is "thirty-one billion, two hundred forty-four million, twenty-four thousand, two hundred forty-one".

Divisors: 1 3 9 27 83 249 269 747 807 2241 2421 7263 22327 51829 66981 155487 200943 466461 602829 1399383 4301807 12905421 13942001 38716263 41826003 116148789 125478009 376434027 1157186083 3471558249 10414674747 31244024241