Search a number
-
+
305152244 = 221718124793
BaseRepresentation
bin10010001100000…
…100000011110100
3210021012100011222
4102030010003310
51111104332434
650140245512
710363515455
oct2214040364
9707170158
10305152244
11147283441
1286240898
134b2b2c77
142c75512c
151bbca72e
hex123040f4

305152244 has 24 divisors (see below), whose sum is σ = 568576008. Its totient is φ = 142801920.

The previous prime is 305152213. The next prime is 305152259. The reversal of 305152244 is 442251503.

It is a happy number.

305152244 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 74476900 + 230675344 = 8630^2 + 15188^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89 + ... + 24704.

It is an arithmetic number, because the mean of its divisors is an integer number (23690667).

Almost surely, 2305152244 is an apocalyptic number.

305152244 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

305152244 is a deficient number, since it is larger than the sum of its proper divisors (263423764).

305152244 is a wasteful number, since it uses less digits than its factorization.

305152244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24995 (or 24993 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 305152244 is about 17468.6073858221. The cubic root of 305152244 is about 673.2435313582.

The spelling of 305152244 in words is "three hundred five million, one hundred fifty-two thousand, two hundred forty-four".

Divisors: 1 2 4 17 34 68 181 362 724 3077 6154 12308 24793 49586 99172 421481 842962 1685924 4487533 8975066 17950132 76288061 152576122 305152244