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3221203212013 = 618912745710223
BaseRepresentation
bin101110110111111110101…
…011000101011011101101
3102101221111012010201210011
4232313332223011123231
5410234011010241023
610503444512013221
7451503263351533
oct56677653053355
912357435121704
103221203212013
111032117266996
1244035a531211
131a49b18a4177
14b1c9adc8153
1558bce3a650d
hex2edfeac56ed

3221203212013 has 32 divisors (see below), whose sum is σ = 3344494510080. Its totient is φ = 3101024424960.

The previous prime is 3221203212001. The next prime is 3221203212061. The reversal of 3221203212013 is 3102123021223.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-3221203212013 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 (3221203212313) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 315088620 + ... + 315098842.

It is an arithmetic number, because the mean of its divisors is an integer number (104515453440).

Almost surely, 23221203212013 is an apocalyptic number.

It is an amenable number.

3221203212013 is a deficient number, since it is larger than the sum of its proper divisors (123291298067).

3221203212013 is a wasteful number, since it uses less digits than its factorization.

3221203212013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10957.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 3221203212013 its reverse (3102123021223), we get a palindrome (6323326233236).

The spelling of 3221203212013 in words is "three trillion, two hundred twenty-one billion, two hundred three million, two hundred twelve thousand, thirteen".

Divisors: 1 61 89 127 457 5429 7747 10223 11303 27877 40673 58039 623603 689483 909847 1298321 2481053 3540379 4671911 5165471 55500667 79197581 115550569 284986571 315093731 415800079 593332697 7048584709 25363804819 36193294517 52806610033 3221203212013