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20202213012 = 22373157146891
BaseRepresentation
bin10010110100001001…
…010100111010010100
31221010221000202100120
4102310021110322110
5312333231304022
613140351311540
71313425656132
oct226411247224
957127022316
1020202213012
118627693713
123ab981b5b0
131b9c5582c7
14d990c2752
157d38b0d5c
hex4b4254e94

20202213012 has 48 divisors (see below), whose sum is σ = 48088915392. Its totient is φ = 6599473920.

The previous prime is 20202212999. The next prime is 20202213071. The reversal of 20202213012 is 21031220202.

It is a happy number.

It is a super-2 number, since 2×202022130122 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20202212982 and 20202213000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64087 + ... + 210977.

It is an arithmetic number, because the mean of its divisors is an integer number (1001852404).

Almost surely, 220202213012 is an apocalyptic number.

It is an amenable number.

20202213012 is an abundant number, since it is smaller than the sum of its proper divisors (27886702380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20202213012 is a wasteful number, since it uses less digits than its factorization.

20202213012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147128 (or 147126 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 20202213012 its reverse (21031220202), we get a palindrome (41233433214).

The spelling of 20202213012 in words is "twenty billion, two hundred two million, two hundred thirteen thousand, twelve".

Divisors: 1 2 3 4 6 12 73 146 157 219 292 314 438 471 628 876 942 1884 11461 22922 34383 45844 68766 137532 146891 293782 440673 587564 881346 1762692 10723043 21446086 23061887 32169129 42892172 46123774 64338258 69185661 92247548 128676516 138371322 276742644 1683517751 3367035502 5050553253 6734071004 10101106506 20202213012