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3220023121 = 7460003303
BaseRepresentation
bin1011111111101101…
…1010011101010001
322022102001010022121
42333323122131101
523043311214441
61251304134241
7142536513340
oct27773323521
98272033277
103220023121
11140268a037
1275a467381
133c415c633
1422791bb57
1513ca55dd1
hexbfeda751

3220023121 has 4 divisors (see below), whose sum is σ = 3680026432. Its totient is φ = 2760019812.

The previous prime is 3220023113. The next prime is 3220023139. The reversal of 3220023121 is 1213200223.

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 3220023121 - 23 = 3220023113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3220023095 and 3220023104.

It is not an unprimeable number, because it can be changed into a prime (3220023221) 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, 230001645 + ... + 230001658.

It is an arithmetic number, because the mean of its divisors is an integer number (920006608).

Almost surely, 23220023121 is an apocalyptic number.

It is an amenable number.

3220023121 is a deficient number, since it is larger than the sum of its proper divisors (460003311).

3220023121 is an equidigital number, since it uses as much as digits as its factorization.

3220023121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460003310.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 3220023121 is about 56745.2475631220. The cubic root of 3220023121 is about 1476.6797863169.

Adding to 3220023121 its reverse (1213200223), we get a palindrome (4433223344).

The spelling of 3220023121 in words is "three billion, two hundred twenty million, twenty-three thousand, one hundred twenty-one".

Divisors: 1 7 460003303 3220023121