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111031242 = 2374795519
BaseRepresentation
bin1101001111000…
…11001111001010
321201220222020020
412213203033022
5211410444432
615003441310
72515515150
oct647431712
9251828206
10111031242
1157746463
1231226236
131a00687a
1410a633d0
159b3322c
hex69e33ca

111031242 has 32 divisors (see below), whose sum is σ = 254361600. Its totient is φ = 31651248.

The previous prime is 111031241. The next prime is 111031247. The reversal of 111031242 is 242130111.

It is not an unprimeable number, because it can be changed into a prime (111031241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17359 + ... + 22877.

It is an arithmetic number, because the mean of its divisors is an integer number (7948800).

Almost surely, 2111031242 is an apocalyptic number.

111031242 is an abundant number, since it is smaller than the sum of its proper divisors (143330358).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111031242 is a wasteful number, since it uses less digits than its factorization.

111031242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6010.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 111031242 is about 10537.1363282440. The cubic root of 111031242 is about 480.6346379663.

Adding to 111031242 its reverse (242130111), we get a palindrome (353161353).

The spelling of 111031242 in words is "one hundred eleven million, thirty-one thousand, two hundred forty-two".

Divisors: 1 2 3 6 7 14 21 42 479 958 1437 2874 3353 5519 6706 10059 11038 16557 20118 33114 38633 77266 115899 231798 2643601 5287202 7930803 15861606 18505207 37010414 55515621 111031242