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22130423 = 74373523
BaseRepresentation
bin101010001101…
…0111011110111
31112122100020022
41110122323313
521131133143
62110155355
7356051120
oct124327367
945570208
1022130423
1111545a07
1274b2b5b
13477b033
142d21047
151e22268
hex151aef7

22130423 has 8 divisors (see below), whose sum is σ = 25880448. Its totient is φ = 18527544.

The previous prime is 22130411. The next prime is 22130431. The reversal of 22130423 is 32403122.

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

It is not a de Polignac number, because 22130423 - 212 = 22126327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22130483) 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, 36461 + ... + 37062.

It is an arithmetic number, because the mean of its divisors is an integer number (3235056).

Almost surely, 222130423 is an apocalyptic number.

22130423 is a deficient number, since it is larger than the sum of its proper divisors (3750025).

22130423 is an equidigital number, since it uses as much as digits as its factorization.

22130423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73573.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 22130423 is about 4704.2983536336. The cubic root of 22130423 is about 280.7565551504.

Adding to 22130423 its reverse (32403122), we get a palindrome (54533545).

The spelling of 22130423 in words is "twenty-two million, one hundred thirty thousand, four hundred twenty-three".

Divisors: 1 7 43 301 73523 514661 3161489 22130423