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111069993 = 31731163431
BaseRepresentation
bin1101001111011…
…00101100101001
321201222221101110
412213230230221
5211413214433
615004340533
72516036136
oct647545451
9251887343
10111069993
1157772591
1231244749
131a01b3b8
1410a7358d
159b3e963
hex69ecb29

111069993 has 32 divisors (see below), whose sum is σ = 163233792. Its totient is φ = 66873600.

The previous prime is 111069961. The next prime is 111069997. The reversal of 111069993 is 399960111.

It is a happy number.

It is not a de Polignac number, because 111069993 - 25 = 111069961 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (111069997) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 257488 + ... + 257918.

It is an arithmetic number, because the mean of its divisors is an integer number (5101056).

Almost surely, 2111069993 is an apocalyptic number.

It is an amenable number.

111069993 is a deficient number, since it is larger than the sum of its proper divisors (52163799).

111069993 is a wasteful number, since it uses less digits than its factorization.

111069993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645.

The product of its (nonzero) digits is 13122, while the sum is 39.

The square root of 111069993 is about 10538.9749501553. The cubic root of 111069993 is about 480.6905468743.

The spelling of 111069993 in words is "one hundred eleven million, sixty-nine thousand, nine hundred ninety-three".

Divisors: 1 3 17 31 51 93 163 431 489 527 1293 1581 2771 5053 7327 8313 13361 15159 21981 40083 70253 85901 210759 227137 257703 681411 1194301 2177843 3582903 6533529 37023331 111069993