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1111232045 = 572113147283
BaseRepresentation
bin100001000111100…
…0000111000101101
32212102222102210102
41002033000320231
54233433411140
6302133320445
736352213400
oct10217007055
92772872712
101111232045
115202970a0
12270196125
131492b4271
14a7823d37
1567853e15
hex423c0e2d

1111232045 has 96 divisors (see below), whose sum is σ = 1790263296. Its totient is φ = 653788800.

The previous prime is 1111232029. The next prime is 1111232053. The reversal of 1111232045 is 5402321111.

It is not a de Polignac number, because 1111232045 - 24 = 1111232029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3926474 + ... + 3926756.

It is an arithmetic number, because the mean of its divisors is an integer number (18648576).

Almost surely, 21111232045 is an apocalyptic number.

It is an amenable number.

1111232045 is a deficient number, since it is larger than the sum of its proper divisors (679031251).

1111232045 is a wasteful number, since it uses less digits than its factorization.

1111232045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391 (or 384 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 1111232045 is about 33335.1472923100. The cubic root of 1111232045 is about 1035.7817442591.

Adding to 1111232045 its reverse (5402321111), we get a palindrome (6513553156).

The spelling of 1111232045 in words is "one billion, one hundred eleven million, two hundred thirty-two thousand, forty-five".

Divisors: 1 5 7 11 31 35 47 49 55 77 155 217 235 245 283 329 341 385 517 539 1085 1415 1457 1519 1645 1705 1981 2303 2387 2585 2695 3113 3619 7285 7595 8773 9905 10199 11515 11935 13301 13867 15565 16027 16709 18095 21791 25333 43865 50995 61411 66505 69335 71393 80135 83545 93107 96503 108955 112189 126665 146311 152537 307055 356965 412331 429877 465535 482515 560945 651749 675521 731555 762685 785323 1024177 2061655 2149385 2886317 3258745 3377605 3926615 4535641 4728647 5120885 7169239 14431585 20204219 22678205 23643235 31749487 35846195 101021095 158747435 222246409 1111232045