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22421230 = 2513213267
BaseRepresentation
bin101010110000…
…1111011101110
31120012010010221
41111201323232
521214434410
62120321554
7361402006
oct125417356
946163127
1022421230
1111724447
1276132ba
134850500
142d99006
151e7d4da
hex1561eee

22421230 has 24 divisors (see below), whose sum is σ = 43704792. Its totient is φ = 8277984.

The previous prime is 22421183. The next prime is 22421233. The reversal of 22421230 is 3212422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22421233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4944 + ... + 8323.

It is an arithmetic number, because the mean of its divisors is an integer number (1821033).

Almost surely, 222421230 is an apocalyptic number.

22421230 is a deficient number, since it is larger than the sum of its proper divisors (21283562).

22421230 is a wasteful number, since it uses less digits than its factorization.

22421230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13300 (or 13287 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 22421230 is about 4735.1061234148. The cubic root of 22421230 is about 281.9809772055.

Adding to 22421230 its reverse (3212422), we get a palindrome (25633652).

The spelling of 22421230 in words is "twenty-two million, four hundred twenty-one thousand, two hundred thirty".

Divisors: 1 2 5 10 13 26 65 130 169 338 845 1690 13267 26534 66335 132670 172471 344942 862355 1724710 2242123 4484246 11210615 22421230