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112545391 = 759272507
BaseRepresentation
bin1101011010101…
…00111001101111
321211202220020211
412231110321233
5212302423031
615100123251
72534422450
oct655247157
9254686224
10112545391
1158590022
1231836527
131a416b0a
1410d39127
159d31bb1
hex6b54e6f

112545391 has 8 divisors (see below), whose sum is σ = 130803840. Its totient is φ = 94832088.

The previous prime is 112545383. The next prime is 112545403. The reversal of 112545391 is 193545211.

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 112545391 - 23 = 112545383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112545311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135841 + ... + 136666.

It is an arithmetic number, because the mean of its divisors is an integer number (16350480).

Almost surely, 2112545391 is an apocalyptic number.

112545391 is a deficient number, since it is larger than the sum of its proper divisors (18258449).

112545391 is an equidigital number, since it uses as much as digits as its factorization.

112545391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272573.

The product of its digits is 5400, while the sum is 31.

The square root of 112545391 is about 10608.7412542676. The cubic root of 112545391 is about 482.8096088005.

The spelling of 112545391 in words is "one hundred twelve million, five hundred forty-five thousand, three hundred ninety-one".

Divisors: 1 7 59 413 272507 1907549 16077913 112545391