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3131061441 = 31043687147
BaseRepresentation
bin1011101010100000…
…0011010011000001
322002012122101211120
42322220003103001
522403022431231
61234405302453
7140406404004
oct27250032301
98065571746
103131061441
111367447892
12734704a29
133ab8b21a1
14219ba153b
15134d31d96
hexbaa034c1

3131061441 has 4 divisors (see below), whose sum is σ = 4174748592. Its totient is φ = 2087374292.

The previous prime is 3131061421. The next prime is 3131061449. The reversal of 3131061441 is 1441601313.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3131061441 - 29 = 3131060929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3131061449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 521843571 + ... + 521843576.

It is an arithmetic number, because the mean of its divisors is an integer number (1043687148).

Almost surely, 23131061441 is an apocalyptic number.

It is an amenable number.

3131061441 is a deficient number, since it is larger than the sum of its proper divisors (1043687151).

3131061441 is a wasteful number, since it uses less digits than its factorization.

3131061441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1043687150.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 3131061441 is about 55955.8883496634. Note that the first 3 decimals coincide. The cubic root of 3131061441 is about 1462.9535258516.

Adding to 3131061441 its reverse (1441601313), we get a palindrome (4572662754).

The spelling of 3131061441 in words is "three billion, one hundred thirty-one million, sixty-one thousand, four hundred forty-one".

Divisors: 1 3 1043687147 3131061441