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109780745 = 527181019
BaseRepresentation
bin1101000101100…
…01111100001001
321122120102212112
412202301330021
5211100440440
614520552105
72502056324
oct642617411
9248512775
10109780745
1156a71998
1230922635
1319989629
14108197bb
159987965
hex68b1f09

109780745 has 8 divisors (see below), whose sum is σ = 132224640. Its totient is φ = 87499440.

The previous prime is 109780733. The next prime is 109780753. The reversal of 109780745 is 547087901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 109780745 - 24 = 109780729 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 39155 + ... + 41864.

It is an arithmetic number, because the mean of its divisors is an integer number (16528080).

Almost surely, 2109780745 is an apocalyptic number.

It is an amenable number.

109780745 is a deficient number, since it is larger than the sum of its proper divisors (22443895).

109780745 is an equidigital number, since it uses as much as digits as its factorization.

109780745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81295.

The product of its (nonzero) digits is 70560, while the sum is 41.

The square root of 109780745 is about 10477.6306959159. The cubic root of 109780745 is about 478.8234276684.

The spelling of 109780745 in words is "one hundred nine million, seven hundred eighty thousand, seven hundred forty-five".

Divisors: 1 5 271 1355 81019 405095 21956149 109780745