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30270454 = 215135227
BaseRepresentation
bin111001101111…
…0001111110110
32002221220020221
41303132033312
530222123304
63000444554
7515203024
oct163361766
962856227
1030270454
11160a5705
12a17975a
13636b116
14403d714
1529ce054
hex1cde3f6

30270454 has 4 divisors (see below), whose sum is σ = 45405684. Its totient is φ = 15135226.

The previous prime is 30270451. The next prime is 30270463. The reversal of 30270454 is 45407203.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45407203 = 181125073.

It is a super-2 number, since 2×302704542 = 1832600770732232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30270451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7567612 + ... + 7567615.

It is an arithmetic number, because the mean of its divisors is an integer number (11351421).

Almost surely, 230270454 is an apocalyptic number.

30270454 is a deficient number, since it is larger than the sum of its proper divisors (15135230).

30270454 is a wasteful number, since it uses less digits than its factorization.

30270454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15135229.

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 30270454 is about 5501.8591403270. The cubic root of 30270454 is about 311.6541958209.

Adding to 30270454 its reverse (45407203), we get a palindrome (75677657).

It can be divided in two parts, 302 and 70454, that added together give a square (70756 = 2662).

The spelling of 30270454 in words is "thirty million, two hundred seventy thousand, four hundred fifty-four".

Divisors: 1 2 15135227 30270454