Search a number
-
+
307304349 = 3119312253
BaseRepresentation
bin10010010100010…
…001011110011101
3210102020200022120
4102110101132131
51112132214344
650254333153
710421021022
oct2224213635
9712220276
10307304349
11148513340
1286aba1b9
134b8876c1
142cb55549
151bea3219
hex1251179d

307304349 has 8 divisors (see below), whose sum is σ = 446988192. Its totient is φ = 186245040.

The previous prime is 307304303. The next prime is 307304363. The reversal of 307304349 is 943403703.

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

It is not a de Polignac number, because 307304349 - 211 = 307302301 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 9312253 = 307304349 / (3 + 0 + 7 + 3 + 0 + 4 + 3 + 4 + 9).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (307304369) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4656094 + ... + 4656159.

It is an arithmetic number, because the mean of its divisors is an integer number (55873524).

Almost surely, 2307304349 is an apocalyptic number.

It is an amenable number.

307304349 is a deficient number, since it is larger than the sum of its proper divisors (139683843).

307304349 is a wasteful number, since it uses less digits than its factorization.

307304349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9312267.

The product of its (nonzero) digits is 27216, while the sum is 33.

The square root of 307304349 is about 17530.0983739396. The cubic root of 307304349 is about 674.8225223385.

The spelling of 307304349 in words is "three hundred seven million, three hundred four thousand, three hundred forty-nine".

Divisors: 1 3 11 33 9312253 27936759 102434783 307304349