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20275195 = 510134003
BaseRepresentation
bin100110101010…
…1111111111011
31102011002100011
41031111333323
520142301240
62002322351
7334223233
oct115257773
942132304
1020275195
1110499066
1269593b7
13427b775
14299acc3
151ba76ea
hex1355ffb

20275195 has 8 divisors (see below), whose sum is σ = 24360336. Its totient is φ = 16200096.

The previous prime is 20275193. The next prime is 20275207. The reversal of 20275195 is 59157202.

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 20275195 - 21 = 20275193 is a prime.

It is a super-2 number, since 2×202751952 = 822167064576050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20275193) 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, 3064 + ... + 7066.

It is an arithmetic number, because the mean of its divisors is an integer number (3045042).

Almost surely, 220275195 is an apocalyptic number.

20275195 is a deficient number, since it is larger than the sum of its proper divisors (4085141).

20275195 is a wasteful number, since it uses less digits than its factorization.

20275195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5021.

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 20275195 is about 4502.7985742203. The cubic root of 20275195 is about 272.6810849224.

The spelling of 20275195 in words is "twenty million, two hundred seventy-five thousand, one hundred ninety-five".

Divisors: 1 5 1013 4003 5065 20015 4055039 20275195