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23203230 = 2354317987
BaseRepresentation
bin101100010000…
…0110110011110
31121122211211220
41120200312132
521420000410
62145154210
7401136621
oct130406636
947584756
1023203230
1112108a26
12792b966
134a6542b
14311ddb8
152085070
hex1620d9e

23203230 has 32 divisors (see below), whose sum is σ = 56985984. Its totient is φ = 6043296.

The previous prime is 23203223. The next prime is 23203267. The reversal of 23203230 is 3230232.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7704 + ... + 10283.

It is an arithmetic number, because the mean of its divisors is an integer number (1780812).

Almost surely, 223203230 is an apocalyptic number.

23203230 is an abundant number, since it is smaller than the sum of its proper divisors (33782754).

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

23203230 is a wasteful number, since it uses less digits than its factorization.

23203230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18040.

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

The square root of 23203230 is about 4816.9731159723. The cubic root of 23203230 is about 285.2218647895.

Adding to 23203230 its reverse (3230232), we get a palindrome (26433462).

The spelling of 23203230 in words is "twenty-three million, two hundred three thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 43 86 129 215 258 430 645 1290 17987 35974 53961 89935 107922 179870 269805 539610 773441 1546882 2320323 3867205 4640646 7734410 11601615 23203230