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19230130 = 251923013
BaseRepresentation
bin100100101011…
…0110110110010
31100011222210001
41021112312302
514410331010
61524100214
7322311343
oct111266662
940158701
1019230130
11a944977
12653466a
133ca3b9a
1427a80ca
151a4cc3a
hex1256db2

19230130 has 8 divisors (see below), whose sum is σ = 34614252. Its totient is φ = 7692048.

The previous prime is 19230083. The next prime is 19230131. The reversal of 19230130 is 3103291.

It can be written as a sum of positive squares in 2 ways, for example, as 17147881 + 2082249 = 4141^2 + 1443^2 .

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

It is a super-3 number, since 3×192301303 (a number of 23 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 19230098 and 19230107.

It is not an unprimeable number, because it can be changed into a prime (19230131) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 961497 + ... + 961516.

Almost surely, 219230130 is an apocalyptic number.

19230130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19230130 is a deficient number, since it is larger than the sum of its proper divisors (15384122).

19230130 is a wasteful number, since it uses less digits than its factorization.

19230130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1923020.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 19230130 is about 4385.2172124081. The cubic root of 19230130 is about 267.9131763748.

The spelling of 19230130 in words is "nineteen million, two hundred thirty thousand, one hundred thirty".

Divisors: 1 2 5 10 1923013 3846026 9615065 19230130