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2053187 = 2389269
BaseRepresentation
bin111110101010001000011
310212022102222
413311101003
51011200222
6112001255
723310653
oct7652103
93768388
102053187
111182654
1283022b
1356b706
143b6363
152a8542
hex1f5443

2053187 has 4 divisors (see below), whose sum is σ = 2142480. Its totient is φ = 1963896.

The previous prime is 2053127. The next prime is 2053189. The reversal of 2053187 is 7813502.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7813502 = 23906751.

It is a cyclic number.

It is not a de Polignac number, because 2053187 - 210 = 2052163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2053189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44612 + ... + 44657.

It is an arithmetic number, because the mean of its divisors is an integer number (535620).

22053187 is an apocalyptic number.

2053187 is a deficient number, since it is larger than the sum of its proper divisors (89293).

2053187 is an equidigital number, since it uses as much as digits as its factorization.

2053187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89292.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 2053187 is about 1432.8946227828. The cubic root of 2053187 is about 127.0992053513.

Adding to 2053187 its reverse (7813502), we get a palindrome (9866689).

The spelling of 2053187 in words is "two million, fifty-three thousand, one hundred eighty-seven".

Divisors: 1 23 89269 2053187