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3161304133 = 13435755813
BaseRepresentation
bin1011110001101101…
…1010110001000101
322011022112220000021
42330123122301011
522433243213013
61241405415141
7141224433061
oct27433326105
98138486007
103161304133
111382523649
1274286a4b1
133b4c40780
1421dbd4aa1
15137807a8d
hexbc6dac45

3161304133 has 8 divisors (see below), whose sum is σ = 3405323768. Its totient is φ = 2917404864.

The previous prime is 3161304131. The next prime is 3161304149. The reversal of 3161304133 is 3314031613.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1100779684 + 2060524449 = 33178^2 + 45393^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3161304133 - 21 = 3161304131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3161304098 and 3161304107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3161304131) 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 7 ways as a sum of consecutive naturals, for example, 28735 + ... + 84547.

It is an arithmetic number, because the mean of its divisors is an integer number (425665471).

Almost surely, 23161304133 is an apocalyptic number.

It is an amenable number.

3161304133 is a deficient number, since it is larger than the sum of its proper divisors (244019635).

3161304133 is a wasteful number, since it uses less digits than its factorization.

3161304133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60183.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 3161304133 is about 56225.4758361368. The cubic root of 3161304133 is about 1467.6486284015.

Adding to 3161304133 its reverse (3314031613), we get a palindrome (6475335746).

The spelling of 3161304133 in words is "three billion, one hundred sixty-one million, three hundred four thousand, one hundred thirty-three".

Divisors: 1 13 4357 55813 56641 725569 243177241 3161304133