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3012893131 = 3197190101
BaseRepresentation
bin1011001110010101…
…0001100111001011
321202222021211101111
42303211101213023
522132300040011
61214544431151
7134443111663
oct26345214713
97688254344
103012893131
111306777226
127010184b7
13390279c01
142082011a3
1512978e121
hexb39519cb

3012893131 has 4 divisors (see below), whose sum is σ = 3110083264. Its totient is φ = 2915703000.

The previous prime is 3012893087. The next prime is 3012893167. The reversal of 3012893131 is 1313982103.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1313982103 = 7187711729.

It is a cyclic number.

It is not a de Polignac number, because 3012893131 - 27 = 3012893003 is a prime.

It is a super-2 number, since 2×30128931312 = 18155050037653966322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 97190101 = 3012893131 / (3 + 0 + 1 + 2 + 8 + 9 + 3 + 1 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3012893093 and 3012893102.

It is not an unprimeable number, because it can be changed into a prime (3012893531) 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, 48595020 + ... + 48595081.

It is an arithmetic number, because the mean of its divisors is an integer number (777520816).

Almost surely, 23012893131 is an apocalyptic number.

3012893131 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

3012893131 is a deficient number, since it is larger than the sum of its proper divisors (97190133).

3012893131 is an equidigital number, since it uses as much as digits as its factorization.

3012893131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97190132.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 3012893131 is about 54889.8272086914. The cubic root of 3012893131 is about 1444.3127411145.

The spelling of 3012893131 in words is "three billion, twelve million, eight hundred ninety-three thousand, one hundred thirty-one".

Divisors: 1 31 97190101 3012893131