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3122001013 = 5347583879
BaseRepresentation
bin1011101000010101…
…1111010001110101
322001120121002021011
42322011133101311
522343213013023
61233443152221
7140236366525
oct27205372165
98046532234
103122001013
11136231962a
12731675671
133a9a5c1a1
142188c3685
1513414250d
hexba15f475

3122001013 has 4 divisors (see below), whose sum is σ = 3122590240. Its totient is φ = 3121411788.

The previous prime is 3122001011. The next prime is 3122001083. The reversal of 3122001013 is 3101002213.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3101002213 = 14411215183.

It is a cyclic number.

It is not a de Polignac number, because 3122001013 - 21 = 3122001011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3122000984 and 3122001002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3122001011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 286593 + ... + 297286.

It is an arithmetic number, because the mean of its divisors is an integer number (780647560).

Almost surely, 23122001013 is an apocalyptic number.

It is an amenable number.

3122001013 is a deficient number, since it is larger than the sum of its proper divisors (589227).

3122001013 is an equidigital number, since it uses as much as digits as its factorization.

3122001013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589226.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 3122001013 is about 55874.8692436949. The cubic root of 3122001013 is about 1461.5410345548.

Adding to 3122001013 its reverse (3101002213), we get a palindrome (6223003226).

The spelling of 3122001013 in words is "three billion, one hundred twenty-two million, one thousand, thirteen".

Divisors: 1 5347 583879 3122001013