Search a number
-
+
30148910 = 2511274081
BaseRepresentation
bin111001100000…
…0100100101110
32002201201112022
41303000210232
530204231120
62554110142
7514155461
oct163004456
962651468
1030148910
1116022360
12a11b352
1363279bc
14400b2d8
1529a8025
hex1cc092e

30148910 has 16 divisors (see below), whose sum is σ = 59201712. Its totient is φ = 10963200.

The previous prime is 30148903. The next prime is 30148913. The reversal of 30148910 is 1984103.

It is a self number, because there is not a number n which added to its sum of digits gives 30148910.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30148913) 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, 136931 + ... + 137150.

It is an arithmetic number, because the mean of its divisors is an integer number (3700107).

Almost surely, 230148910 is an apocalyptic number.

30148910 is a deficient number, since it is larger than the sum of its proper divisors (29052802).

30148910 is a wasteful number, since it uses less digits than its factorization.

30148910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274099.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 30148910 is about 5490.8023093169. The cubic root of 30148910 is about 311.2365111921.

The spelling of 30148910 in words is "thirty million, one hundred forty-eight thousand, nine hundred ten".

Divisors: 1 2 5 10 11 22 55 110 274081 548162 1370405 2740810 3014891 6029782 15074455 30148910