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19480133 = 34955817
BaseRepresentation
bin100101001001…
…1111001000101
31100122200201102
41022103321011
514441331013
61533305445
7324402251
oct112237105
940580642
1019480133
11aaa5792
126635285
13406090a
142831261
151a9bd58
hex1293e45

19480133 has 4 divisors (see below), whose sum is σ = 19536300. Its totient is φ = 19423968.

The previous prime is 19480129. The next prime is 19480151. The reversal of 19480133 is 33108491.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17581249 + 1898884 = 4193^2 + 1378^2 .

It is a cyclic number.

It is not a de Polignac number, because 19480133 - 22 = 19480129 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 19480096 and 19480105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19480193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27560 + ... + 28257.

It is an arithmetic number, because the mean of its divisors is an integer number (4884075).

Almost surely, 219480133 is an apocalyptic number.

It is an amenable number.

19480133 is a deficient number, since it is larger than the sum of its proper divisors (56167).

19480133 is an equidigital number, since it uses as much as digits as its factorization.

19480133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56166.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 19480133 is about 4413.6303651303. The cubic root of 19480133 is about 269.0691907532.

The spelling of 19480133 in words is "nineteen million, four hundred eighty thousand, one hundred thirty-three".

Divisors: 1 349 55817 19480133