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23021022212 = 2219302908187
BaseRepresentation
bin10101011100001010…
…001110110000000100
32012102101010002122022
4111130022032300010
5334121340202322
614324204222312
71443324313556
oct253412166004
965371102568
1023021022212
1198438487a1
12456583a998
13222b53c946
1411856014d6
158eb0b3942
hex55c28ec04

23021022212 has 12 divisors (see below), whose sum is σ = 42407146320. Its totient is φ = 10904694696.

The previous prime is 23021022197. The next prime is 23021022239. The reversal of 23021022212 is 21222012032.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151454018 + ... + 151454169.

It is an arithmetic number, because the mean of its divisors is an integer number (3533928860).

Almost surely, 223021022212 is an apocalyptic number.

It is an amenable number.

23021022212 is a deficient number, since it is larger than the sum of its proper divisors (19386124108).

23021022212 is a wasteful number, since it uses less digits than its factorization.

23021022212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302908210 (or 302908208 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 23021022212 its reverse (21222012032), we get a palindrome (44243034244).

The spelling of 23021022212 in words is "twenty-three billion, twenty-one million, twenty-two thousand, two hundred twelve".

Divisors: 1 2 4 19 38 76 302908187 605816374 1211632748 5755255553 11510511106 23021022212