Search a number
-
+
19031325 = 352253751
BaseRepresentation
bin100100010011…
…0010100011101
31022210220001220
41020212110131
514333000300
61515523553
7320522625
oct110462435
938726056
1019031325
11a819575
1264595b9
133c34551
142755885
151a0dda0
hex122651d

19031325 has 12 divisors (see below), whose sum is σ = 31465248. Its totient is φ = 10150000.

The previous prime is 19031317. The next prime is 19031351. The reversal of 19031325 is 52313091.

It is a happy number.

It is not a de Polignac number, because 19031325 - 23 = 19031317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19031295 and 19031304.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 126801 + ... + 126950.

It is an arithmetic number, because the mean of its divisors is an integer number (2622104).

Almost surely, 219031325 is an apocalyptic number.

19031325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

19031325 is a deficient number, since it is larger than the sum of its proper divisors (12433923).

19031325 is a wasteful number, since it uses less digits than its factorization.

19031325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253764 (or 253759 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 24.

The square root of 19031325 is about 4362.4906876691. The cubic root of 19031325 is about 266.9867294110.

The spelling of 19031325 in words is "nineteen million, thirty-one thousand, three hundred twenty-five".

Divisors: 1 3 5 15 25 75 253751 761253 1268755 3806265 6343775 19031325