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19054145 = 511346439
BaseRepresentation
bin100100010101…
…1111001000001
31022212001101002
41020223321001
514334213040
61520221345
7320646305
oct110537101
938761332
1019054145
11a834730
12646a855
133c41a56
14275dd05
151a15a15
hex122be41

19054145 has 8 divisors (see below), whose sum is σ = 24943680. Its totient is φ = 13857520.

The previous prime is 19054069. The next prime is 19054151. The reversal of 19054145 is 54145091.

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

It is a de Polignac number, because none of the positive numbers 2k-19054145 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173165 + ... + 173274.

It is an arithmetic number, because the mean of its divisors is an integer number (3117960).

Almost surely, 219054145 is an apocalyptic number.

It is an amenable number.

19054145 is a deficient number, since it is larger than the sum of its proper divisors (5889535).

19054145 is a wasteful number, since it uses less digits than its factorization.

19054145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346455.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 19054145 is about 4365.1053824621. The cubic root of 19054145 is about 267.0933992235.

The spelling of 19054145 in words is "nineteen million, fifty-four thousand, one hundred forty-five".

Divisors: 1 5 11 55 346439 1732195 3810829 19054145