Search a number
-
+
30141646 = 217886519
BaseRepresentation
bin111001011111…
…0110011001110
32002201100120021
41302332303032
530204013041
62554012354
7514125343
oct162766316
962640507
1030141646
1116017957
12a1170ba
1363245c2
1440087ca
1529a5cd1
hex1cbecce

30141646 has 8 divisors (see below), whose sum is σ = 47872080. Its totient is φ = 14184288.

The previous prime is 30141607. The next prime is 30141647. The reversal of 30141646 is 64614103.

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

It is a self number, because there is not a number n which added to its sum of digits gives 30141646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30141647) 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, 443226 + ... + 443293.

It is an arithmetic number, because the mean of its divisors is an integer number (5984010).

Almost surely, 230141646 is an apocalyptic number.

30141646 is a deficient number, since it is larger than the sum of its proper divisors (17730434).

30141646 is a wasteful number, since it uses less digits than its factorization.

30141646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 886538.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 30141646 is about 5490.1407996517. The cubic root of 30141646 is about 311.2115130124.

Adding to 30141646 its reverse (64614103), we get a palindrome (94755749).

The spelling of 30141646 in words is "thirty million, one hundred forty-one thousand, six hundred forty-six".

Divisors: 1 2 17 34 886519 1773038 15070823 30141646