Search a number
-
+
31330606436 = 2243917842031
BaseRepresentation
bin11101001011011100…
…110001110101100100
32222212111001201020222
4131023130301311210
51003131113401221
622220523343512
72156254521623
oct351334616544
988774051228
1031330606436
1112318346378
1260a4681b98
132c53c5809c
1417330556ba
15c358629ab
hex74b731d64

31330606436 has 12 divisors (see below), whose sum is σ = 54953458560. Its totient is φ = 15629618280.

The previous prime is 31330606369. The next prime is 31330606457. The reversal of 31330606436 is 63460603313.

It is a junction number, because it is equal to n+sod(n) for n = 31330606396 and 31330606405.

It is an unprimeable number.

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, 8919260 + ... + 8922771.

It is an arithmetic number, because the mean of its divisors is an integer number (4579454880).

Almost surely, 231330606436 is an apocalyptic number.

It is an amenable number.

31330606436 is a deficient number, since it is larger than the sum of its proper divisors (23622852124).

31330606436 is a wasteful number, since it uses less digits than its factorization.

31330606436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17842474 (or 17842472 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 35.

The spelling of 31330606436 in words is "thirty-one billion, three hundred thirty million, six hundred six thousand, four hundred thirty-six".

Divisors: 1 2 4 439 878 1756 17842031 35684062 71368124 7832651609 15665303218 31330606436