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20190827 = 315312289
BaseRepresentation
bin100110100000…
…1011001101011
31101222210121102
41031001121223
520132101302
62000432015
7333422246
oct115013153
941883542
1020190827
1110440738
12691860b
13424c247
14297825d
151b8c702
hex134166b

20190827 has 8 divisors (see below), whose sum is σ = 21237120. Its totient is φ = 19169280.

The previous prime is 20190823. The next prime is 20190847. The reversal of 20190827 is 72809102.

It is a happy number.

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 20190827 - 22 = 20190823 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20190827.

It is not an unprimeable number, because it can be changed into a prime (20190823) 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, 4502 + ... + 7787.

It is an arithmetic number, because the mean of its divisors is an integer number (2654640).

Almost surely, 220190827 is an apocalyptic number.

20190827 is a deficient number, since it is larger than the sum of its proper divisors (1046293).

20190827 is a wasteful number, since it uses less digits than its factorization.

20190827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12373.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 20190827 is about 4493.4204121137. The cubic root of 20190827 is about 272.3023373681.

Adding to 20190827 its reverse (72809102), we get a palindrome (92999929).

The spelling of 20190827 in words is "twenty million, one hundred ninety thousand, eight hundred twenty-seven".

Divisors: 1 31 53 1643 12289 380959 651317 20190827