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19110055 = 515432477
BaseRepresentation
bin100100011100…
…1100010100111
31022221220001211
41020321202213
514343010210
61521332251
7321301306
oct110714247
938856054
1019110055
11a872738
126497087
133c61333
14277643d
151a2738a
hex12398a7

19110055 has 8 divisors (see below), whose sum is σ = 22956192. Its totient is φ = 15271968.

The previous prime is 19110037. The next prime is 19110061. The reversal of 19110055 is 55001191.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-19110055 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6477 + ... + 8953.

It is an arithmetic number, because the mean of its divisors is an integer number (2869524).

Almost surely, 219110055 is an apocalyptic number.

19110055 is a deficient number, since it is larger than the sum of its proper divisors (3846137).

19110055 is a wasteful number, since it uses less digits than its factorization.

19110055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4025.

The product of its (nonzero) digits is 225, while the sum is 22.

The square root of 19110055 is about 4371.5048896233. The cubic root of 19110055 is about 267.3543854763.

The spelling of 19110055 in words is "nineteen million, one hundred ten thousand, fifty-five".

Divisors: 1 5 1543 2477 7715 12385 3822011 19110055