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1222144230 = 23561366457
BaseRepresentation
bin100100011011000…
…0111000011100110
310011011200100201010
41020312013003212
510000332103410
6321134443050
742200024466
oct11066070346
93134610633
101222144230
1157796105a
122a1363486
13166278888
14b8455ba6
1572461c20
hex48d870e6

1222144230 has 32 divisors (see below), whose sum is σ = 2937975264. Its totient is φ = 325368576.

The previous prime is 1222144213. The next prime is 1222144249. The reversal of 1222144230 is 324412221.

It is a junction number, because it is equal to n+sod(n) for n = 1222144197 and 1222144206.

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, 14839 + ... + 51618.

It is an arithmetic number, because the mean of its divisors is an integer number (91811727).

Almost surely, 21222144230 is an apocalyptic number.

1222144230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1222144230 is an abundant number, since it is smaller than the sum of its proper divisors (1715831034).

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

1222144230 is a wasteful number, since it uses less digits than its factorization.

1222144230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67080.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1222144230 is about 34959.1794812178. The cubic root of 1222144230 is about 1069.1553674485.

Adding to 1222144230 its reverse (324412221), we get a palindrome (1546556451).

The spelling of 1222144230 in words is "one billion, two hundred twenty-two million, one hundred forty-four thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 613 1226 1839 3065 3678 6130 9195 18390 66457 132914 199371 332285 398742 664570 996855 1993710 40738141 81476282 122214423 203690705 244428846 407381410 611072115 1222144230