Search a number
-
+
2015424401 is a prime number
BaseRepresentation
bin111100000100000…
…1110111110010001
312012110101011112012
41320020032332101
513111422040101
6531553312305
7100641552614
oct17010167621
95173334465
102015424401
11944722201
12482b65695
13261717c23
1415195217b
15bbe0cbbb
hex7820ef91

2015424401 has 2 divisors, whose sum is σ = 2015424402. Its totient is φ = 2015424400.

The previous prime is 2015424377. The next prime is 2015424407. The reversal of 2015424401 is 1044245102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1600080001 + 415344400 = 40001^2 + 20380^2 .

It is a cyclic number.

It is not a de Polignac number, because 2015424401 - 26 = 2015424337 is a prime.

It is a super-2 number, since 2×20154244012 = 8123871032292417602, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2015424407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1007712200 + 1007712201.

It is an arithmetic number, because the mean of its divisors is an integer number (1007712201).

Almost surely, 22015424401 is an apocalyptic number.

It is an amenable number.

2015424401 is a deficient number, since it is larger than the sum of its proper divisors (1).

2015424401 is an equidigital number, since it uses as much as digits as its factorization.

2015424401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 2015424401 is about 44893.4783793816. The cubic root of 2015424401 is about 1263.1516802344.

Adding to 2015424401 its reverse (1044245102), we get a palindrome (3059669503).

The spelling of 2015424401 in words is "two billion, fifteen million, four hundred twenty-four thousand, four hundred one".