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452432020 = 22522621601
BaseRepresentation
bin11010111101111…
…001000010010100
31011112022221001111
4122331321002110
51411310311040
6112521104404
714132415535
oct3275710224
91145287044
10452432020
11212427967
12107628104
137296b971
144413268c
1529abddea
hex1af79094

452432020 has 12 divisors (see below), whose sum is σ = 950107284. Its totient is φ = 180972800.

The previous prime is 452432017. The next prime is 452432021. The reversal of 452432020 is 20234254.

It can be written as a sum of positive squares in 2 ways, for example, as 277822224 + 174609796 = 16668^2 + 13214^2 .

It is a junction number, because it is equal to n+sod(n) for n = 452431982 and 452432000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (452432021) 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, 11310781 + ... + 11310820.

It is an arithmetic number, because the mean of its divisors is an integer number (79175607).

Almost surely, 2452432020 is an apocalyptic number.

It is an amenable number.

452432020 is an abundant number, since it is smaller than the sum of its proper divisors (497675264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

452432020 is a wasteful number, since it uses less digits than its factorization.

452432020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22621610 (or 22621608 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 452432020 is about 21270.4494545837. The cubic root of 452432020 is about 767.6874564660.

Adding to 452432020 its reverse (20234254), we get a palindrome (472666274).

The spelling of 452432020 in words is "four hundred fifty-two million, four hundred thirty-two thousand, twenty".

Divisors: 1 2 4 5 10 20 22621601 45243202 90486404 113108005 226216010 452432020