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30419619 = 343235811
BaseRepresentation
bin111010000001…
…0101010100011
32010020110212120
41310002222203
530241411434
63003555323
7516363636
oct164025243
963213776
1030419619
111619778a
12a22bb43
1363c0c99
14407bc1d
152a0d349
hex1d02aa3

30419619 has 8 divisors (see below), whose sum is σ = 41502912. Its totient is φ = 19808040.

The previous prime is 30419591. The next prime is 30419629. The reversal of 30419619 is 91691403.

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

It is not a de Polignac number, because 30419619 - 29 = 30419107 is a prime.

It is a super-2 number, since 2×304196192 = 1850706440210322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30419619.

It is not an unprimeable number, because it can be changed into a prime (30419629) by changing a digit.

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, 117777 + ... + 118034.

It is an arithmetic number, because the mean of its divisors is an integer number (5187864).

Almost surely, 230419619 is an apocalyptic number.

30419619 is a deficient number, since it is larger than the sum of its proper divisors (11083293).

30419619 is a wasteful number, since it uses less digits than its factorization.

30419619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235857.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 30419619 is about 5515.3983537003. The cubic root of 30419619 is about 312.1652744495.

The spelling of 30419619 in words is "thirty million, four hundred nineteen thousand, six hundred nineteen".

Divisors: 1 3 43 129 235811 707433 10139873 30419619