Search a number
-
+
31200113319 = 389128391079
BaseRepresentation
bin11101000011101010…
…111111001010100111
32222112101111222100120
4131003222333022213
51002344212111234
622155542413023
72153111405334
oct350352771247
988471458316
1031200113319
1112260717a21
126068a31173
132c32bc901b
14171d9a798b
15c29188049
hex743abf2a7

31200113319 has 16 divisors (see below), whose sum is σ = 42100819200. Its totient is φ = 20550111296.

The previous prime is 31200113309. The next prime is 31200113327. The reversal of 31200113319 is 91331100213.

It is a cyclic number.

It is not a de Polignac number, because 31200113319 - 24 = 31200113303 is a prime.

It is a super-2 number, since 2×312001133192 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31200113309) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 297022 + ... + 388100.

It is an arithmetic number, because the mean of its divisors is an integer number (2631301200).

Almost surely, 231200113319 is an apocalyptic number.

31200113319 is a deficient number, since it is larger than the sum of its proper divisors (10900705881).

31200113319 is a wasteful number, since it uses less digits than its factorization.

31200113319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92454.

The product of its (nonzero) digits is 486, while the sum is 24.

The spelling of 31200113319 in words is "thirty-one billion, two hundred million, one hundred thirteen thousand, three hundred nineteen".

Divisors: 1 3 89 267 1283 3849 91079 114187 273237 342561 8106031 24318093 116854357 350563071 10400037773 31200113319