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111425321 = 7101173911
BaseRepresentation
bin1101010010000…
…11011100101001
321202122222210202
412221003130221
5212011102241
615020121545
72522046110
oct651033451
9252588722
10111425321
1157995547
12313962b5
131a114057
1410b26c77
159baed9b
hex6a43729

111425321 has 16 divisors (see below), whose sum is σ = 129489408. Its totient is φ = 93912000.

The previous prime is 111425311. The next prime is 111425339. The reversal of 111425321 is 123524111.

It is not a de Polignac number, because 111425321 - 26 = 111425257 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111425293 and 111425302.

It is not an unprimeable number, because it can be changed into a prime (111425311) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 121856 + ... + 122766.

It is an arithmetic number, because the mean of its divisors is an integer number (8093088).

Almost surely, 2111425321 is an apocalyptic number.

It is an amenable number.

111425321 is a deficient number, since it is larger than the sum of its proper divisors (18064087).

111425321 is a wasteful number, since it uses less digits than its factorization.

111425321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1192.

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

The square root of 111425321 is about 10555.8192955355. The cubic root of 111425321 is about 481.2025993456.

Adding to 111425321 its reverse (123524111), we get a palindrome (234949432).

The spelling of 111425321 in words is "one hundred eleven million, four hundred twenty-five thousand, three hundred twenty-one".

Divisors: 1 7 101 173 707 911 1211 6377 17473 92011 122311 157603 644077 1103221 15917903 111425321