Search a number
-
+
31141111015 = 57889746029
BaseRepresentation
bin11101000000001001…
…111010010011100111
32222101021111100102001
4131000021322103213
51002234111023030
622150034030131
72151464035060
oct350011722347
988337440361
1031141111015
1112230388693
126051118347
132c2390b211
141715c09567
15c23dd0cca
hex74027a4e7

31141111015 has 8 divisors (see below), whose sum is σ = 42707809440. Its totient is φ = 21353904672.

The previous prime is 31141111009. The next prime is 31141111033. The reversal of 31141111015 is 51011114113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31141111015 - 25 = 31141110983 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31141110983 and 31141111001.

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, 444872980 + ... + 444873049.

It is an arithmetic number, because the mean of its divisors is an integer number (5338476180).

Almost surely, 231141111015 is an apocalyptic number.

31141111015 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

31141111015 is a deficient number, since it is larger than the sum of its proper divisors (11566698425).

31141111015 is an equidigital number, since it uses as much as digits as its factorization.

31141111015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 889746041.

The product of its (nonzero) digits is 60, while the sum is 19.

Adding to 31141111015 its reverse (51011114113), we get a palindrome (82152225128).

The spelling of 31141111015 in words is "thirty-one billion, one hundred forty-one million, one hundred eleven thousand, fifteen".

Divisors: 1 5 7 35 889746029 4448730145 6228222203 31141111015