Search a number
-
+
30218674 = 218183477
BaseRepresentation
bin111001101000…
…1100110110010
32002212021020011
41303101212302
530213444144
62555405134
7514566043
oct163214662
962767204
1030218674
111606a812
12a1537aa
136350695
1440288ca
1529bda34
hex1cd19b2

30218674 has 8 divisors (see below), whose sum is σ = 45578988. Its totient is φ = 15025680.

The previous prime is 30218641. The next prime is 30218689. The reversal of 30218674 is 47681203.

It can be written as a sum of positive squares in 2 ways, for example, as 29975625 + 243049 = 5475^2 + 493^2 .

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

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 3 ways as a sum of consecutive naturals, for example, 41377 + ... + 42100.

Almost surely, 230218674 is an apocalyptic number.

30218674 is a deficient number, since it is larger than the sum of its proper divisors (15360314).

30218674 is a wasteful number, since it uses less digits than its factorization.

30218674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83660.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 30218674 is about 5497.1514441572. The cubic root of 30218674 is about 311.4763913687.

Adding to 30218674 its reverse (47681203), we get a palindrome (77899877).

The spelling of 30218674 in words is "thirty million, two hundred eighteen thousand, six hundred seventy-four".

Divisors: 1 2 181 362 83477 166954 15109337 30218674