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2057453 = 19108287
BaseRepresentation
bin111110110010011101101
310212112021222
413312103231
51011314303
6112033125
723326256
oct7662355
93775258
102057453
111185882
128327a5
13570638
143b7b2d
152a9938
hex1f64ed

2057453 has 4 divisors (see below), whose sum is σ = 2165760. Its totient is φ = 1949148.

The previous prime is 2057441. The next prime is 2057477. The reversal of 2057453 is 3547502.

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 2057453 - 28 = 2057197 is a prime.

It is a super-2 number, since 2×20574532 = 8466225694418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2057483) 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, 54125 + ... + 54162.

It is an arithmetic number, because the mean of its divisors is an integer number (541440).

22057453 is an apocalyptic number.

It is an amenable number.

2057453 is a deficient number, since it is larger than the sum of its proper divisors (108307).

2057453 is a wasteful number, since it uses less digits than its factorization.

2057453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108306.

The product of its (nonzero) digits is 4200, while the sum is 26.

The square root of 2057453 is about 1434.3824455144. The cubic root of 2057453 is about 127.1871710556.

The spelling of 2057453 in words is "two million, fifty-seven thousand, four hundred fifty-three".

Divisors: 1 19 108287 2057453