Search a number
-
+
31054202542 = 211311665741
BaseRepresentation
bin11100111010111110…
…011000011010101110
32222011012221221101201
4130322332120122232
51002044333440132
622133251200114
72146360236436
oct347276303256
988135857351
1031054202542
1112196319000
126027ba603a
132c0b8cc49c
1417084652c6
15c1b4652e7
hex73af986ae

31054202542 has 16 divisors (see below), whose sum is σ = 51235938864. Its totient is φ = 14115545400.

The previous prime is 31054202521. The next prime is 31054202573. The reversal of 31054202542 is 24520245013.

It is a self number, because there is not a number n which added to its sum of digits gives 31054202542.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5830209 + ... + 5835532.

It is an arithmetic number, because the mean of its divisors is an integer number (3202246179).

Almost surely, 231054202542 is an apocalyptic number.

31054202542 is a deficient number, since it is larger than the sum of its proper divisors (20181736322).

31054202542 is a wasteful number, since it uses less digits than its factorization.

31054202542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11665776 (or 11665754 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 31054202542 its reverse (24520245013), we get a palindrome (55574447555).

The spelling of 31054202542 in words is "thirty-one billion, fifty-four million, two hundred two thousand, five hundred forty-two".

Divisors: 1 2 11 22 121 242 1331 2662 11665741 23331482 128323151 256646302 1411554661 2823109322 15527101271 31054202542