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3220121311013 = 291391674783469
BaseRepresentation
bin101110110110111110001…
…011111101011100100101
3102101211200210100110121202
4232312332023331130211
5410224302023423023
610503145303052245
7451434415346315
oct56667613753445
912354623313552
103220121311013
111031711593732
124400b8141085
131a486b6bc569
14b1bd743b445
1558b693e8128
hex2edbe2fd725

3220121311013 has 16 divisors (see below), whose sum is σ = 3375216432000. Its totient is φ = 3068231178432.

The previous prime is 3220121310977. The next prime is 3220121311081. The reversal of 3220121311013 is 3101131210223.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 3220121311013 - 214 = 3220121294629 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 (3220121311213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1718558 + ... + 3064911.

It is an arithmetic number, because the mean of its divisors is an integer number (210951027000).

Almost surely, 23220121311013 is an apocalyptic number.

It is an amenable number.

3220121311013 is a deficient number, since it is larger than the sum of its proper divisors (155095120987).

3220121311013 is a wasteful number, since it uses less digits than its factorization.

3220121311013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4783804.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 3220121311013 its reverse (3101131210223), we get a palindrome (6321252521236).

The spelling of 3220121311013 in words is "three trillion, two hundred twenty billion, one hundred twenty-one million, three hundred eleven thousand, thirteen".

Divisors: 1 29 139 167 4031 4843 23213 673177 4783469 138720601 664902191 798839323 19282163539 23166340367 111038665897 3220121311013