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30189735 = 3254116363
BaseRepresentation
bin111001100101…
…0100010100111
32002210210112100
41303022202213
530212032420
62555023143
7514415502
oct163124247
962723470
1030189735
111604aaa4
12a13aab3
136340464
14401c139
1529b5190
hex1cca8a7

30189735 has 24 divisors (see below), whose sum is σ = 53608464. Its totient is φ = 15707520.

The previous prime is 30189707. The next prime is 30189751. The reversal of 30189735 is 53798103.

It is not a de Polignac number, because 30189735 - 215 = 30156967 is a prime.

It is a super-2 number, since 2×301897352 = 1822840198740450, 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 30189735.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 6337 + ... + 10026.

It is an arithmetic number, because the mean of its divisors is an integer number (2233686).

Almost surely, 230189735 is an apocalyptic number.

30189735 is a deficient number, since it is larger than the sum of its proper divisors (23418729).

30189735 is a wasteful number, since it uses less digits than its factorization.

30189735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16415 (or 16412 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 30189735 is about 5494.5186322370. The cubic root of 30189735 is about 311.3769308586.

The spelling of 30189735 in words is "thirty million, one hundred eighty-nine thousand, seven hundred thirty-five".

Divisors: 1 3 5 9 15 41 45 123 205 369 615 1845 16363 49089 81815 147267 245445 670883 736335 2012649 3354415 6037947 10063245 30189735