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20125127 = 1117107621
BaseRepresentation
bin100110011000…
…1010111000111
31101212110111002
41030301113013
520123001002
61555203515
7333026561
oct114612707
941773432
1020125127
11103a6340
1268a659b
134228379
14295c331
151b78002
hex13315c7

20125127 has 8 divisors (see below), whose sum is σ = 23246352. Its totient is φ = 17219200.

The previous prime is 20125117. The next prime is 20125153. The reversal of 20125127 is 72152102.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-20125127 is a prime.

It is a super-2 number, since 2×201251272 = 810041473532258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20125099 and 20125108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20125117) 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, 53624 + ... + 53997.

It is an arithmetic number, because the mean of its divisors is an integer number (2905794).

Almost surely, 220125127 is an apocalyptic number.

20125127 is a deficient number, since it is larger than the sum of its proper divisors (3121225).

20125127 is a wasteful number, since it uses less digits than its factorization.

20125127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107649.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 20125127 is about 4486.1037660759. The cubic root of 20125127 is about 272.0066634397.

Adding to 20125127 its reverse (72152102), we get a palindrome (92277229).

The spelling of 20125127 in words is "twenty million, one hundred twenty-five thousand, one hundred twenty-seven".

Divisors: 1 11 17 187 107621 1183831 1829557 20125127