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3121142413 = 23331342797
BaseRepresentation
bin1011101000001000…
…1101101010001101
322001111222110111011
42322002031222031
522343003024123
61233412525221
7140226162364
oct27202155215
98044873434
103121142413
111361892544
12731320811
133a981b43c
1421873c7db
15134022e0d
hexba08da8d

3121142413 has 8 divisors (see below), whose sum is σ = 3144625848. Its totient is φ = 3097745664.

The previous prime is 3121142399. The next prime is 3121142417. The reversal of 3121142413 is 3142411213.

It can be written as a sum of positive squares in 4 ways, for example, as 101969604 + 3019172809 = 10098^2 + 54947^2 .

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 3121142413 - 29 = 3121141901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121142417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51531 + ... + 94327.

It is an arithmetic number, because the mean of its divisors is an integer number (393078231).

Almost surely, 23121142413 is an apocalyptic number.

It is an amenable number.

3121142413 is a deficient number, since it is larger than the sum of its proper divisors (23483435).

3121142413 is a wasteful number, since it uses less digits than its factorization.

3121142413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43343.

The product of its digits is 576, while the sum is 22.

The square root of 3121142413 is about 55867.1854759124. The cubic root of 3121142413 is about 1461.4070399168.

Adding to 3121142413 its reverse (3142411213), we get a palindrome (6263553626).

The spelling of 3121142413 in words is "three billion, one hundred twenty-one million, one hundred forty-two thousand, four hundred thirteen".

Divisors: 1 233 313 42797 72929 9971701 13395461 3121142413