Search a number
-
+
30048609 = 310016203
BaseRepresentation
bin111001010100…
…0000101100001
32002112121221110
41302220011201
530143023414
62552013533
7513260163
oct162500541
962477843
1030048609
1115a63a68
12a0912a9
1362c1156
143dc2933
152988459
hex1ca8161

30048609 has 4 divisors (see below), whose sum is σ = 40064816. Its totient is φ = 20032404.

The previous prime is 30048593. The next prime is 30048617. The reversal of 30048609 is 90684003.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 30048609 - 24 = 30048593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30047609) 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, 5008099 + ... + 5008104.

It is an arithmetic number, because the mean of its divisors is an integer number (10016204).

Almost surely, 230048609 is an apocalyptic number.

It is an amenable number.

30048609 is a deficient number, since it is larger than the sum of its proper divisors (10016207).

30048609 is a wasteful number, since it uses less digits than its factorization.

30048609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10016206.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 30048609 is about 5481.6611533366. The cubic root of 30048609 is about 310.8909816641.

It can be divided in two parts, 300 and 48609, that multiplied together give a triangular number (14582700 = T5400).

The spelling of 30048609 in words is "thirty million, forty-eight thousand, six hundred nine".

Divisors: 1 3 10016203 30048609