Search a number
-
+
31214105544 = 2331300587731
BaseRepresentation
bin11101000100100000…
…010111001111001000
32222120100211212002010
4131010200113033020
51002411302334134
622201202335520
72153341343106
oct350440271710
988510755063
1031214105544
1112268604546
12607165a5a0
132c35a87a4b
1417217aac76
15c2a4edce9
hex7448173c8

31214105544 has 16 divisors (see below), whose sum is σ = 78035263920. Its totient is φ = 10404701840.

The previous prime is 31214105539. The next prime is 31214105627. The reversal of 31214105544 is 44550141213.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 650293842 + ... + 650293889.

It is an arithmetic number, because the mean of its divisors is an integer number (4877203995).

Almost surely, 231214105544 is an apocalyptic number.

It is an amenable number.

31214105544 is an abundant number, since it is smaller than the sum of its proper divisors (46821158376).

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

31214105544 is a wasteful number, since it uses less digits than its factorization.

31214105544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1300587740 (or 1300587736 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 31214105544 its reverse (44550141213), we get a palindrome (75764246757).

The spelling of 31214105544 in words is "thirty-one billion, two hundred fourteen million, one hundred five thousand, five hundred forty-four".

Divisors: 1 2 3 4 6 8 12 24 1300587731 2601175462 3901763193 5202350924 7803526386 10404701848 15607052772 31214105544