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23532020 = 2251176601
BaseRepresentation
bin101100111000…
…1000111110100
31122021112212022
41121301013310
522011011040
62200212312
7404006321
oct131610764
948245768
1023532020
1112312a56
127a6a098
134b4bc95
1431a7b48
1520ec6b5
hex16711f4

23532020 has 12 divisors (see below), whose sum is σ = 49417284. Its totient is φ = 9412800.

The previous prime is 23532011. The next prime is 23532049. The reversal of 23532020 is 2023532.

It can be written as a sum of positive squares in 2 ways, for example, as 16957924 + 6574096 = 4118^2 + 2564^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 23532020.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 588281 + ... + 588320.

It is an arithmetic number, because the mean of its divisors is an integer number (4118107).

Almost surely, 223532020 is an apocalyptic number.

23532020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23532020 is an abundant number, since it is smaller than the sum of its proper divisors (25885264).

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

23532020 is a wasteful number, since it uses less digits than its factorization.

23532020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1176610 (or 1176608 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 17.

The square root of 23532020 is about 4850.9813440169. The cubic root of 23532020 is about 286.5627500278.

Adding to 23532020 its reverse (2023532), we get a palindrome (25555552).

The spelling of 23532020 in words is "twenty-three million, five hundred thirty-two thousand, twenty".

Divisors: 1 2 4 5 10 20 1176601 2353202 4706404 5883005 11766010 23532020