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3151340231 = 13242410787
BaseRepresentation
bin1011101111010101…
…1010001011000111
322010121210200002212
42323311122023013
522423220341411
61240412054035
7141043643564
oct27365321307
98117720085
103151340231
111377938616
1273b46431b
133b2b62480
1421c75d86b
151369da68b
hexbbd5a2c7

3151340231 has 4 divisors (see below), whose sum is σ = 3393751032. Its totient is φ = 2908929432.

The previous prime is 3151340221. The next prime is 3151340251. The reversal of 3151340231 is 1320431513.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3151340231 - 210 = 3151339207 is a prime.

It is a super-2 number, since 2×31513402312 = 19861890503038266722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3151340197 and 3151340206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3151340221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121205381 + ... + 121205406.

It is an arithmetic number, because the mean of its divisors is an integer number (848437758).

Almost surely, 23151340231 is an apocalyptic number.

3151340231 is a deficient number, since it is larger than the sum of its proper divisors (242410801).

3151340231 is a wasteful number, since it uses less digits than its factorization.

3151340231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242410800.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 3151340231 is about 56136.7992585969. The cubic root of 3151340231 is about 1466.1050779064.

Adding to 3151340231 its reverse (1320431513), we get a palindrome (4471771744).

The spelling of 3151340231 in words is "three billion, one hundred fifty-one million, three hundred forty thousand, two hundred thirty-one".

Divisors: 1 13 242410787 3151340231