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30419 = 191601
BaseRepresentation
bin111011011010011
31112201122
413123103
51433134
6352455
7154454
oct73323
945648
1030419
1120944
121572b
1310acc
14b12b
15902e
hex76d3

30419 has 4 divisors (see below), whose sum is σ = 32040. Its totient is φ = 28800.

The previous prime is 30403. The next prime is 30427. The reversal of 30419 is 91403.

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

It is a cyclic number.

It is not a de Polignac number, because 30419 - 24 = 30403 is a prime.

It is a super-2 number, since 2×304192 = 1850631122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30397 and 30406.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 30419.

It is not an unprimeable number, because it can be changed into a prime (30449) 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, 782 + ... + 819.

It is an arithmetic number, because the mean of its divisors is an integer number (8010).

230419 is an apocalyptic number.

30419 is a deficient number, since it is larger than the sum of its proper divisors (1621).

30419 is a wasteful number, since it uses less digits than its factorization.

30419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1620.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 30419 is about 174.4104354676. The cubic root of 30419 is about 31.2163157048.

It can be divided in two parts, 304 and 19, that multiplied together give a square (5776 = 762).

The spelling of 30419 in words is "thirty thousand, four hundred nineteen".

Divisors: 1 19 1601 30419