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23430030 = 2351360077
BaseRepresentation
bin101100101100…
…0001110001110
31122002100221220
41121120032032
521444230110
62154104210
7403103061
oct131301616
948070856
1023430030
1112253368
127a1b066
134b14730
14317c8d8
1520cc370
hex165838e

23430030 has 32 divisors (see below), whose sum is σ = 60558624. Its totient is φ = 5767296.

The previous prime is 23430013. The next prime is 23430037. The reversal of 23430030 is 3003432.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 23429991 and 23430009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23430037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29649 + ... + 30428.

It is an arithmetic number, because the mean of its divisors is an integer number (1892457).

Almost surely, 223430030 is an apocalyptic number.

23430030 is an abundant number, since it is smaller than the sum of its proper divisors (37128594).

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

23430030 is a wasteful number, since it uses less digits than its factorization.

23430030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60100.

The product of its (nonzero) digits is 216, while the sum is 15.

The square root of 23430030 is about 4840.4576229939. The cubic root of 23430030 is about 286.1481537974.

Adding to 23430030 its reverse (3003432), we get a palindrome (26433462).

The spelling of 23430030 in words is "twenty-three million, four hundred thirty thousand, thirty".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 78 130 195 390 60077 120154 180231 300385 360462 600770 781001 901155 1562002 1802310 2343003 3905005 4686006 7810010 11715015 23430030