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22131363427 = 291568348661
BaseRepresentation
bin10100100111001000…
…011100111001100011
32010010101001202012221
4110213020130321203
5330311112112202
614100023531511
71412302325305
oct244710347143
963111052187
1022131363427
1194276399a8
1243578b9b97
132119127224
1410dd3b7975
15897e2b037
hex52721ce63

22131363427 has 8 divisors (see below), whose sum is σ = 22896444240. Its totient is φ = 21366411360.

The previous prime is 22131363421. The next prime is 22131363451. The reversal of 22131363427 is 72436313122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22131363427 - 215 = 22131330659 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22131363392 and 22131363401.

It is not an unprimeable number, because it can be changed into a prime (22131363421) 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 7 ways as a sum of consecutive naturals, for example, 430477 + ... + 479137.

It is an arithmetic number, because the mean of its divisors is an integer number (2862055530).

Almost surely, 222131363427 is an apocalyptic number.

22131363427 is a deficient number, since it is larger than the sum of its proper divisors (765080813).

22131363427 is a wasteful number, since it uses less digits than its factorization.

22131363427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64373.

The product of its digits is 36288, while the sum is 34.

Adding to 22131363427 its reverse (72436313122), we get a palindrome (94567676549).

The spelling of 22131363427 in words is "twenty-two billion, one hundred thirty-one million, three hundred sixty-three thousand, four hundred twenty-seven".

Divisors: 1 29 15683 48661 454807 1411169 763150463 22131363427