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2113453 = 17911807
BaseRepresentation
bin1000000011111110101101
310222101010001
420003332231
51020112303
6113144301
723651446
oct10037655
93871101
102113453
111213961
1285b091
1358cc84
143d02cd
152bb31d
hex203fad

2113453 has 4 divisors (see below), whose sum is σ = 2125440. Its totient is φ = 2101468.

The previous prime is 2113451. The next prime is 2113459. The reversal of 2113453 is 3543112.

It is the 594-th star number.

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 2113453 - 21 = 2113451 is a prime.

It is a Duffinian number.

2113453 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2113453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113451) 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, 5725 + ... + 6082.

It is an arithmetic number, because the mean of its divisors is an integer number (531360).

22113453 is an apocalyptic number.

It is an amenable number.

2113453 is a deficient number, since it is larger than the sum of its proper divisors (11987).

2113453 is a wasteful number, since it uses less digits than its factorization.

2113453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11986.

The product of its digits is 360, while the sum is 19.

The square root of 2113453 is about 1453.7719903754. The cubic root of 2113453 is about 128.3307891027.

Adding to 2113453 its reverse (3543112), we get a palindrome (5656565).

The spelling of 2113453 in words is "two million, one hundred thirteen thousand, four hundred fifty-three".

Divisors: 1 179 11807 2113453