Search a number
-
+
1231431120310 = 251667197337441
BaseRepresentation
bin10001111010110111000…
…000111011010110110110
311100201112112220110100111
4101322313000323112312
5130133432331322220
62341413414333234
7154653003550216
oct21726700732666
94321475813314
101231431120310
11435279844a86
1217a7ab95a21a
138c17b306451
144385ca66246
15220742a515a
hex11eb703b5b6

1231431120310 has 32 divisors (see below), whose sum is σ = 2219089092192. Its totient is φ = 492014315520.

The previous prime is 1231431120299. The next prime is 1231431120319. The reversal of 1231431120310 is 130211341321.

Adding to 1231431120310 its reverse (130211341321), we get a palindrome (1361642461631).

It is a super-2 number, since 2×12314311203102 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231431120319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32871190 + ... + 32908630.

It is an arithmetic number, because the mean of its divisors is an integer number (69346534131).

Almost surely, 21231431120310 is an apocalyptic number.

1231431120310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1231431120310 is a deficient number, since it is larger than the sum of its proper divisors (987657971882).

1231431120310 is a wasteful number, since it uses less digits than its factorization.

1231431120310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41088.

The product of its (nonzero) digits is 432, while the sum is 22.

The spelling of 1231431120310 in words is "one trillion, two hundred thirty-one billion, four hundred thirty-one million, one hundred twenty thousand, three hundred ten".

Divisors: 1 2 5 10 1667 1973 3334 3946 8335 9865 16670 19730 37441 74882 187205 374410 3288991 6577982 16444955 32889910 62414147 73871093 124828294 147742186 312070735 369355465 624141470 738710930 123143112031 246286224062 615715560155 1231431120310