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22183720052 = 22131972165533
BaseRepresentation
bin10100101010010000…
…001011010001110100
32010021000120202000012
4110222100023101310
5330413013020202
614105134035352
71413506336444
oct245220132164
963230522005
1022183720052
11945414a23a
124371348b58
132126c29190
141106326124
1589c81e152
hex52a40b474

22183720052 has 24 divisors (see below), whose sum is σ = 42020021736. Its totient is φ = 10186662528.

The previous prime is 22183720051. The next prime is 22183720061. The reversal of 22183720052 is 25002738122.

It can be written as a sum of positive squares in 4 ways, for example, as 1101841636 + 21081878416 = 33194^2 + 145196^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22183720051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1072523 + ... + 1093010.

It is an arithmetic number, because the mean of its divisors is an integer number (1750834239).

Almost surely, 222183720052 is an apocalyptic number.

It is an amenable number.

22183720052 is a deficient number, since it is larger than the sum of its proper divisors (19836301684).

22183720052 is a wasteful number, since it uses less digits than its factorization.

22183720052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2165747 (or 2165745 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The spelling of 22183720052 in words is "twenty-two billion, one hundred eighty-three million, seven hundred twenty thousand, fifty-two".

Divisors: 1 2 4 13 26 52 197 394 788 2561 5122 10244 2165533 4331066 8662132 28151929 56303858 112607716 426610001 853220002 1706440004 5545930013 11091860026 22183720052