Search a number
-
+
307406481 = 3102468827
BaseRepresentation
bin10010010100101…
…010011010010001
3210102102212102020
4102110222122101
51112144001411
650300442053
710421624544
oct2224523221
9712385366
10307406481
11148583048
1286b49329
134b8c2035
142cb8085b
151bec3606
hex1252a691

307406481 has 4 divisors (see below), whose sum is σ = 409875312. Its totient is φ = 204937652.

The previous prime is 307406401. The next prime is 307406501. The reversal of 307406481 is 184604703.

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 a cyclic number.

It is not a de Polignac number, because 307406481 - 215 = 307373713 is a prime.

It is a super-2 number, since 2×3074064812 = 188997489121606722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (307406401) 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, 51234411 + ... + 51234416.

It is an arithmetic number, because the mean of its divisors is an integer number (102468828).

Almost surely, 2307406481 is an apocalyptic number.

It is an amenable number.

307406481 is a deficient number, since it is larger than the sum of its proper divisors (102468831).

307406481 is a wasteful number, since it uses less digits than its factorization.

307406481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102468830.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 307406481 is about 17533.0111789162. The cubic root of 307406481 is about 674.8972727071.

The spelling of 307406481 in words is "three hundred seven million, four hundred six thousand, four hundred eighty-one".

Divisors: 1 3 102468827 307406481