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1320112222 = 211136177481
BaseRepresentation
bin100111010101111…
…0101000001011110
310102000000122112021
41032223311001132
510200422042342
6334554330354
744466524452
oct11653650136
93360018467
101320112222
11618194940
1230a1299ba
1318065a4c0
14c7478662
157ad64567
hex4eaf505e

1320112222 has 32 divisors (see below), whose sum is σ = 2330433504. Its totient is φ = 552921600.

The previous prime is 1320112201. The next prime is 1320112231. The reversal of 1320112222 is 2222110231.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1320112196 and 1320112205.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 172722 + ... + 180202.

It is an arithmetic number, because the mean of its divisors is an integer number (72826047).

Almost surely, 21320112222 is an apocalyptic number.

1320112222 is a deficient number, since it is larger than the sum of its proper divisors (1010321282).

1320112222 is a wasteful number, since it uses less digits than its factorization.

1320112222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8124.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1320112222 is about 36333.3486207919. The cubic root of 1320112222 is about 1096.9923962703.

Adding to 1320112222 its reverse (2222110231), we get a palindrome (3542222453).

The spelling of 1320112222 in words is "one billion, three hundred twenty million, one hundred twelve thousand, two hundred twenty-two".

Divisors: 1 2 11 13 22 26 143 286 617 1234 6787 7481 8021 13574 14962 16042 82291 88231 97253 164582 176462 194506 1069783 2139566 4615777 9231554 50773547 60005101 101547094 120010202 660056111 1320112222