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23430132 = 22321159167
BaseRepresentation
bin101100101100…
…0001111110100
31122002101002200
41121120033310
521444231012
62154104500
7403103265
oct131301764
948071080
1023430132
1112253450
127a1b130
134b147ab
14317c96c
1520cc3dc
hex16583f4

23430132 has 36 divisors (see below), whose sum is σ = 64611456. Its totient is φ = 7099920.

The previous prime is 23430119. The next prime is 23430133. The reversal of 23430132 is 23103432.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23430133) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 29188 + ... + 29979.

Almost surely, 223430132 is an apocalyptic number.

23430132 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

23430132 is an abundant number, since it is smaller than the sum of its proper divisors (41181324).

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

23430132 is a wasteful number, since it uses less digits than its factorization.

23430132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59188 (or 59183 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 23430132 is about 4840.4681591763. The cubic root of 23430132 is about 286.1485690347.

Adding to 23430132 its reverse (23103432), we get a palindrome (46533564).

The spelling of 23430132 in words is "twenty-three million, four hundred thirty thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 9 11 12 18 22 33 36 44 66 99 132 198 396 59167 118334 177501 236668 355002 532503 650837 710004 1065006 1301674 1952511 2130012 2603348 3905022 5857533 7810044 11715066 23430132