Search a number
-
+
307412143 is a prime number
BaseRepresentation
bin10010010100101…
…011110010101111
3210102110011011221
4102110223302233
51112144142033
650300524211
710421650213
oct2224536257
9712404157
10307412143
11148587325
1286b50667
134b8c479c
142cb82943
151bec512d
hex1252bcaf

307412143 has 2 divisors, whose sum is σ = 307412144. Its totient is φ = 307412142.

The previous prime is 307412081. The next prime is 307412167. The reversal of 307412143 is 341214703.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 307412143 - 221 = 305314991 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (307412543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153706071 + 153706072.

It is an arithmetic number, because the mean of its divisors is an integer number (153706072).

Almost surely, 2307412143 is an apocalyptic number.

307412143 is a deficient number, since it is larger than the sum of its proper divisors (1).

307412143 is an equidigital number, since it uses as much as digits as its factorization.

307412143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 307412143 is about 17533.1726450178. The cubic root of 307412143 is about 674.9014162381.

Adding to 307412143 its reverse (341214703), we get a palindrome (648626846).

The spelling of 307412143 in words is "three hundred seven million, four hundred twelve thousand, one hundred forty-three".