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310021202120013 = 3237930994600961
BaseRepresentation
bin100011001111101100110111…
…1101000000000110101001101
31111122200201220121201010120200
41012133121233220000311031
5311113341410220320023
63015205435112204113
7122205202253156346
oct10637315750006515
91448621817633520
10310021202120013
118a8672873a707a
122a930229399639
13103cab48cc2387
14567b16b76d0cd
1525c9569d26743
hex119f66fa00d4d

310021202120013 has 12 divisors (see below), whose sum is σ = 459911332875228. Its totient is φ = 201094833807360.

The previous prime is 310021202120011. The next prime is 310021202120023.

310021202120013 is a `hidden beast` number, since 310 + 0 + 2 + 120 + 21 + 200 + 13 = 666.

310021202120013 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 265669038613449 + 44352163506564 = 16299357^2 + 6659742^2 .

It is not a de Polignac number, because 310021202120013 - 21 = 310021202120011 is a prime.

It is a super-2 number, since 2×3100212021200132 (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (310021202120011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 465497300148 + ... + 465497300813.

It is an arithmetic number, because the mean of its divisors is an integer number (38325944406269).

Almost surely, 2310021202120013 is an apocalyptic number.

It is an amenable number.

310021202120013 is a deficient number, since it is larger than the sum of its proper divisors (149890130755215).

310021202120013 is a wasteful number, since it uses less digits than its factorization.

310021202120013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 930994601004 (or 930994601001 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

It can be divided in two parts, 31002120 and 2120013, that added together give a palindrome (33122133).

The spelling of 310021202120013 in words is "three hundred ten trillion, twenty-one billion, two hundred two million, one hundred twenty thousand, thirteen".

Divisors: 1 3 9 37 111 333 930994600961 2792983802883 8378951408649 34446800235557 103340400706671 310021202120013