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19225829 = 73774231
BaseRepresentation
bin100100101010…
…1110011100101
31100011202212202
41021111303211
514410211304
61524024245
7322262660
oct111256345
940152782
1019225829
11a941717
126532085
133ca1c3c
1427a66d7
151a4b81e
hex1255ce5

19225829 has 8 divisors (see below), whose sum is σ = 22566528. Its totient is φ = 16033680.

The previous prime is 19225823. The next prime is 19225831. The reversal of 19225829 is 92852291.

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 19225829 - 24 = 19225813 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 19225792 and 19225801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19225823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36857 + ... + 37374.

It is an arithmetic number, because the mean of its divisors is an integer number (2820816).

Almost surely, 219225829 is an apocalyptic number.

It is an amenable number.

19225829 is a deficient number, since it is larger than the sum of its proper divisors (3340699).

19225829 is an equidigital number, since it uses as much as digits as its factorization.

19225829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74275.

The product of its digits is 25920, while the sum is 38.

The square root of 19225829 is about 4384.7267873837. The cubic root of 19225829 is about 267.8932011157.

The spelling of 19225829 in words is "nineteen million, two hundred twenty-five thousand, eight hundred twenty-nine".

Divisors: 1 7 37 259 74231 519617 2746547 19225829