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232320020 = 22511616001
BaseRepresentation
bin11011101100011…
…10110000010100
3121012011002011012
431312032300110
5433433220040
635015231352
75520454562
oct1566166024
9535132135
10232320020
1110a158519
1265978558
133919228a
1422bd6a32
15155e0865
hexdd8ec14

232320020 has 12 divisors (see below), whose sum is σ = 487872084. Its totient is φ = 92928000.

The previous prime is 232320019. The next prime is 232320031. The reversal of 232320020 is 20023232.

232320020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 37773316 + 194546704 = 6146^2 + 13948^2 .

It is a junction number, because it is equal to n+sod(n) for n = 232319977 and 232320004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5807981 + ... + 5808020.

It is an arithmetic number, because the mean of its divisors is an integer number (40656007).

Almost surely, 2232320020 is an apocalyptic number.

232320020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

232320020 is an abundant number, since it is smaller than the sum of its proper divisors (255552064).

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

232320020 is a wasteful number, since it uses less digits than its factorization.

232320020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11616010 (or 11616008 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 232320020 is about 15242.0477626860. The cubic root of 232320020 is about 614.7457648789.

Adding to 232320020 its reverse (20023232), we get a palindrome (252343252).

The spelling of 232320020 in words is "two hundred thirty-two million, three hundred twenty thousand, twenty".

Divisors: 1 2 4 5 10 20 11616001 23232002 46464004 58080005 116160010 232320020