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22303000020 = 2235753102381
BaseRepresentation
bin10100110001010111…
…001100010111010100
32010120100000210100210
4110301113030113110
5331134032000040
614125034405420
71416455241450
oct246127142724
963510023323
1022303000020
11950550a024
1243a5290870
132145860442
1411180d5660
158a8031480
hex5315cc5d4

22303000020 has 48 divisors (see below), whose sum is σ = 71369601408. Its totient is φ = 5097828480.

The previous prime is 22303000007. The next prime is 22303000021. The reversal of 22303000020 is 2000030322.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22303000021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26550771 + ... + 26551610.

It is an arithmetic number, because the mean of its divisors is an integer number (1486866696).

Almost surely, 222303000020 is an apocalyptic number.

22303000020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22303000020 is an abundant number, since it is smaller than the sum of its proper divisors (49066601388).

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

22303000020 is a wasteful number, since it uses less digits than its factorization.

22303000020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53102400 (or 53102398 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 12.

Adding to 22303000020 its reverse (2000030322), we get a palindrome (24303030342).

The spelling of 22303000020 in words is "twenty-two billion, three hundred three million, twenty", and thus it is an aban number.

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 420 53102381 106204762 159307143 212409524 265511905 318614286 371716667 531023810 637228572 743433334 796535715 1062047620 1115150001 1486866668 1593071430 1858583335 2230300002 3186142860 3717166670 4460600004 5575750005 7434333340 11151500010 22303000020