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1985093 = 11180463
BaseRepresentation
bin111100100101001000101
310201212000222
413210221011
51002010333
6110314125
722605305
oct7445105
93655028
101985093
111136480
127b8945
13546716
14399605
15293298
hex1e4a45

1985093 has 4 divisors (see below), whose sum is σ = 2165568. Its totient is φ = 1804620.

The previous prime is 1985077. The next prime is 1985167. The reversal of 1985093 is 3905891.

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 1985093 - 24 = 1985077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1985003) 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, 90221 + ... + 90242.

It is an arithmetic number, because the mean of its divisors is an integer number (541392).

21985093 is an apocalyptic number.

It is an amenable number.

1985093 is a deficient number, since it is larger than the sum of its proper divisors (180475).

1985093 is a wasteful number, since it uses less digits than its factorization.

1985093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180474.

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 1985093 is about 1408.9332844390. The cubic root of 1985093 is about 125.6782966516.

The spelling of 1985093 in words is "one million, nine hundred eighty-five thousand, ninety-three".

Divisors: 1 11 180463 1985093