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1223211214 = 27311374143
BaseRepresentation
bin100100011101000…
…1011100011001110
310011020200120100001
41020322023203032
510001120224324
6321213354514
742212060311
oct11072134316
93136616301
101223211214
1157851a765
122a1798a3a
13166560424
14b8652978
15725c2e44
hex48e8b8ce

1223211214 has 16 divisors (see below), whose sum is σ = 1876436352. Its totient is φ = 597881088.

The previous prime is 1223211193. The next prime is 1223211233. The reversal of 1223211214 is 4121123221.

It is a junction number, because it is equal to n+sod(n) for n = 1223211191 and 1223211200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20574 + ... + 53569.

It is an arithmetic number, because the mean of its divisors is an integer number (117277272).

Almost surely, 21223211214 is an apocalyptic number.

1223211214 is a deficient number, since it is larger than the sum of its proper divisors (653225138).

1223211214 is a wasteful number, since it uses less digits than its factorization.

1223211214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74331.

The product of its digits is 192, while the sum is 19.

The square root of 1223211214 is about 34974.4365787356. The cubic root of 1223211214 is about 1069.4664163473.

Adding to 1223211214 its reverse (4121123221), we get a palindrome (5344334435).

The spelling of 1223211214 in words is "one billion, two hundred twenty-three million, two hundred eleven thousand, two hundred fourteen".

Divisors: 1 2 73 113 146 226 8249 16498 74143 148286 5412439 8378159 10824878 16756318 611605607 1223211214