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1110513221 = 27710333881
BaseRepresentation
bin100001000110001…
…0001011001000101
32212101121220202022
41002030101121011
54233242410341
6302110052525
736343130606
oct10214213105
92771556668
101110513221
1151a946024
1226baaa145
131490c201c
14a76b7dad
1567760e4b
hex42311645

1110513221 has 8 divisors (see below), whose sum is σ = 1115888664. Its totient is φ = 1105148160.

The previous prime is 1110513203. The next prime is 1110513223. The reversal of 1110513221 is 1223150111.

It can be written as a sum of positive squares in 4 ways, for example, as 332661121 + 777852100 = 18239^2 + 27890^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1110513221 - 226 = 1043404357 is a prime.

It is a super-2 number, since 2×11105132212 = 2466479228031589682, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1110513221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1110513223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 284201 + ... + 288081.

It is an arithmetic number, because the mean of its divisors is an integer number (139486083).

Almost surely, 21110513221 is an apocalyptic number.

It is an amenable number.

1110513221 is a deficient number, since it is larger than the sum of its proper divisors (5375443).

1110513221 is a wasteful number, since it uses less digits than its factorization.

1110513221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5191.

The product of its (nonzero) digits is 60, while the sum is 17.

The square root of 1110513221 is about 33324.3637748720. The cubic root of 1110513221 is about 1035.5583569600.

Adding to 1110513221 its reverse (1223150111), we get a palindrome (2333663332).

The spelling of 1110513221 in words is "one billion, one hundred ten million, five hundred thirteen thousand, two hundred twenty-one".

Divisors: 1 277 1033 3881 286141 1075037 4009073 1110513221