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1868053 = 11169823
BaseRepresentation
bin111001000000100010101
310111220111011
413020010111
5434234203
6104012221
721610135
oct7100425
93456434
101868053
111066550
12761071
13505375
14368ac5
1526d76d
hex1c8115

1868053 has 4 divisors (see below), whose sum is σ = 2037888. Its totient is φ = 1698220.

The previous prime is 1868051. The next prime is 1868057. The reversal of 1868053 is 3508681.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1868053 - 21 = 1868051 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1868051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84901 + ... + 84922.

It is an arithmetic number, because the mean of its divisors is an integer number (509472).

21868053 is an apocalyptic number.

It is an amenable number.

1868053 is a deficient number, since it is larger than the sum of its proper divisors (169835).

1868053 is a wasteful number, since it uses less digits than its factorization.

1868053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169834.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 1868053 is about 1366.7673540146. The cubic root of 1868053 is about 123.1581239094.

The spelling of 1868053 in words is "one million, eight hundred sixty-eight thousand, fifty-three".

Divisors: 1 11 169823 1868053