Search a number
-
+
31375762406 = 2151857121229
BaseRepresentation
bin11101001110001001…
…000010001111100110
32222222122000212121022
4131032021002033212
51003224143344111
622225215251142
72160343402652
oct351611021746
988878025538
1031375762406
111234088875a
1260b7819ab2
132c604086b1
14173904ba62
15c397d22db
hex74e2423e6

31375762406 has 16 divisors (see below), whose sum is σ = 47430995040. Its totient is φ = 15565675200.

The previous prime is 31375762361. The next prime is 31375762417. The reversal of 31375762406 is 60426757313.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198200 + ... + 319428.

It is an arithmetic number, because the mean of its divisors is an integer number (2964437190).

Almost surely, 231375762406 is an apocalyptic number.

31375762406 is a deficient number, since it is larger than the sum of its proper divisors (16055232634).

31375762406 is a wasteful number, since it uses less digits than its factorization.

31375762406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122239.

The product of its (nonzero) digits is 635040, while the sum is 44.

The spelling of 31375762406 in words is "thirty-one billion, three hundred seventy-five million, seven hundred sixty-two thousand, four hundred six".

Divisors: 1 2 151 302 857 1714 121229 129407 242458 258814 18305579 36611158 103893253 207786506 15687881203 31375762406