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3031403131 = 30011010131
BaseRepresentation
bin1011010010101111…
…1000101001111011
321211021010020100001
42310223320221323
522202014400011
61220445253431
7135056334001
oct26453705173
97737106301
103031403131
11131616a049
12707264277
1339405b083
1420a85ca71
1512b1e87c1
hexb4af8a7b

3031403131 has 4 divisors (see below), whose sum is σ = 3032416264. Its totient is φ = 3030390000.

The previous prime is 3031403129. The next prime is 3031403143. The reversal of 3031403131 is 1313041303.

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 3031403131 - 21 = 3031403129 is a prime.

It is a super-2 number, since 2×30314031312 = 18378809885273206322, 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 = 3031403099 and 3031403108.

It is not an unprimeable number, because it can be changed into a prime (3031413131) 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, 502065 + ... + 508066.

It is an arithmetic number, because the mean of its divisors is an integer number (758104066).

Almost surely, 23031403131 is an apocalyptic number.

3031403131 is a deficient number, since it is larger than the sum of its proper divisors (1013133).

3031403131 is a wasteful number, since it uses less digits than its factorization.

3031403131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1013132.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 3031403131 is about 55058.1795104052. The cubic root of 3031403131 is about 1447.2644628950.

Adding to 3031403131 its reverse (1313041303), we get a palindrome (4344444434).

The spelling of 3031403131 in words is "three billion, thirty-one million, four hundred three thousand, one hundred thirty-one".

Divisors: 1 3001 1010131 3031403131