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11430253 = 20275639
BaseRepresentation
bin101011100110…
…100101101101
3210111201100201
4223212211231
510411232003
61044553501
7166104232
oct53464555
923451321
1011430253
1164a779a
1239b2891
1324a2883
141737789
15100bb1d
hexae696d

11430253 has 4 divisors (see below), whose sum is σ = 11437920. Its totient is φ = 11422588.

The previous prime is 11430233. The next prime is 11430257. The reversal of 11430253 is 35203411.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 35203411 = 54165071.

It is a cyclic number.

It is not a de Polignac number, because 11430253 - 217 = 11299181 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11430253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11430257) 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, 793 + ... + 4846.

It is an arithmetic number, because the mean of its divisors is an integer number (2859480).

Almost surely, 211430253 is an apocalyptic number.

It is an amenable number.

11430253 is a deficient number, since it is larger than the sum of its proper divisors (7667).

11430253 is an equidigital number, since it uses as much as digits as its factorization.

11430253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7666.

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

The square root of 11430253 is about 3380.8657175345. The cubic root of 11430253 is about 225.2606231001.

Adding to 11430253 its reverse (35203411), we get a palindrome (46633664).

The spelling of 11430253 in words is "eleven million, four hundred thirty thousand, two hundred fifty-three".

Divisors: 1 2027 5639 11430253