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2415742481 is a prime number
BaseRepresentation
bin1000111111111101…
…0100111000010001
320020100122102200202
42033333110320101
514421412224411
61035413424545
7113602320665
oct21777247021
96210572622
102415742481
11102a695099
1257503b155
132c663b229
1418cb9a8a5
15e213583b
hex8ffd4e11

2415742481 has 2 divisors, whose sum is σ = 2415742482. Its totient is φ = 2415742480.

The previous prime is 2415742457. The next prime is 2415742493. The reversal of 2415742481 is 1842475142.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2350698256 + 65044225 = 48484^2 + 8065^2 .

It is a cyclic number.

It is not a de Polignac number, because 2415742481 - 210 = 2415741457 is a prime.

It is a super-2 number, since 2×24157424812 = 11671623469016070722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2415742081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1207871240 + 1207871241.

It is an arithmetic number, because the mean of its divisors is an integer number (1207871241).

Almost surely, 22415742481 is an apocalyptic number.

It is an amenable number.

2415742481 is a deficient number, since it is larger than the sum of its proper divisors (1).

2415742481 is an equidigital number, since it uses as much as digits as its factorization.

2415742481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 71680, while the sum is 38.

The square root of 2415742481 is about 49150.2032650934. The cubic root of 2415742481 is about 1341.7868937917.

The spelling of 2415742481 in words is "two billion, four hundred fifteen million, seven hundred forty-two thousand, four hundred eighty-one".