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23430500 = 225346861
BaseRepresentation
bin101100101100…
…0010101100100
31122002101121022
41121120111210
521444234000
62154110312
7403104332
oct131302544
948071538
1023430500
1112253755
127a1b398
134b14a02
14317cb52
1520cc585
hex1658564

23430500 has 24 divisors (see below), whose sum is σ = 51173304. Its totient is φ = 9372000.

The previous prime is 23430499. The next prime is 23430541. The reversal of 23430500 is 503432.

It can be written as a sum of positive squares in 4 ways, for example, as 1658944 + 21771556 = 1288^2 + 4666^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22931 + ... + 23930.

It is an arithmetic number, because the mean of its divisors is an integer number (2132221).

Almost surely, 223430500 is an apocalyptic number.

23430500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23430500 is an abundant number, since it is smaller than the sum of its proper divisors (27742804).

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

23430500 is a wasteful number, since it uses less digits than its factorization.

23430500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46880 (or 46868 counting only the distinct ones).

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

The square root of 23430500 is about 4840.5061718791. The cubic root of 23430500 is about 286.1500671359.

Adding to 23430500 its reverse (503432), we get a palindrome (23933932).

The spelling of 23430500 in words is "twenty-three million, four hundred thirty thousand, five hundred".

Divisors: 1 2 4 5 10 20 25 50 100 125 250 500 46861 93722 187444 234305 468610 937220 1171525 2343050 4686100 5857625 11715250 23430500