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3191114631 = 31063704877
BaseRepresentation
bin1011111000110100…
…1000101110000111
322020101122102022210
42332031020232013
523013411132011
61244352354503
7142036012125
oct27615105607
98211572283
103191114631
111398334721
12750845a33
133bb17a413
14223b54915
1513a2456a6
hexbe348b87

3191114631 has 4 divisors (see below), whose sum is σ = 4254819512. Its totient is φ = 2127409752.

The previous prime is 3191114623. The next prime is 3191114639. The reversal of 3191114631 is 1364111913.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1364111913 = 3454703971.

It is an interprime number because it is at equal distance from previous prime (3191114623) and next prime (3191114639).

It is not a de Polignac number, because 3191114631 - 23 = 3191114623 is a prime.

It is a super-2 number, since 2×31911146312 = 20366425176364532322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3191114639) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 531852436 + ... + 531852441.

It is an arithmetic number, because the mean of its divisors is an integer number (1063704878).

Almost surely, 23191114631 is an apocalyptic number.

3191114631 is a deficient number, since it is larger than the sum of its proper divisors (1063704881).

3191114631 is a wasteful number, since it uses less digits than its factorization.

3191114631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063704880.

The product of its digits is 1944, while the sum is 30.

The square root of 3191114631 is about 56489.9515931816. The cubic root of 3191114631 is about 1472.2474193172.

The spelling of 3191114631 in words is "three billion, one hundred ninety-one million, one hundred fourteen thousand, six hundred thirty-one".

Divisors: 1 3 1063704877 3191114631