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232242220 = 22571658873
BaseRepresentation
bin11011101011110…
…11110000101100
3121012000010102201
431311323300230
5433423222340
635013431244
75520012010
oct1565736054
9535003381
10232242220
1110a105021
126593b524
1339165a42
1422bb6540
15155c779a
hexdd7bc2c

232242220 has 24 divisors (see below), whose sum is σ = 557381664. Its totient is φ = 79625856.

The previous prime is 232242191. The next prime is 232242223. The reversal of 232242220 is 22242232.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (232242223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 829297 + ... + 829576.

It is an arithmetic number, because the mean of its divisors is an integer number (23224236).

Almost surely, 2232242220 is an apocalyptic number.

232242220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

232242220 is an abundant number, since it is smaller than the sum of its proper divisors (325139444).

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

232242220 is a wasteful number, since it uses less digits than its factorization.

232242220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1658889 (or 1658887 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 232242220 is about 15239.4953984704. The cubic root of 232242220 is about 614.6771346042.

Adding to 232242220 its reverse (22242232), we get a palindrome (254484452).

The spelling of 232242220 in words is "two hundred thirty-two million, two hundred forty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 1658873 3317746 6635492 8294365 11612111 16588730 23224222 33177460 46448444 58060555 116121110 232242220