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4815253381 is a prime number
BaseRepresentation
bin1000111110000001…
…01110111110000101
3110102120202012211211
410133000232332011
534330201102011
62113451331421
7230216656411
oct43700567605
913376665754
104815253381
1120510a3154
12b24750b71
135b97b5373
1433972dd41
151d2b11b21
hex11f02ef85

4815253381 has 2 divisors, whose sum is σ = 4815253382. Its totient is φ = 4815253380.

The previous prime is 4815253379. The next prime is 4815253393. The reversal of 4815253381 is 1833525184.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3266122500 + 1549130881 = 57150^2 + 39359^2 .

It is a cyclic number.

It is not a de Polignac number, because 4815253381 - 21 = 4815253379 is a prime.

It is a super-2 number, since 2×48152533812 = 46373330246463862322, which contains 22 as substring.

Together with 4815253379, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4815253301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2407626690 + 2407626691.

It is an arithmetic number, because the mean of its divisors is an integer number (2407626691).

Almost surely, 24815253381 is an apocalyptic number.

It is an amenable number.

4815253381 is a deficient number, since it is larger than the sum of its proper divisors (1).

4815253381 is an equidigital number, since it uses as much as digits as its factorization.

4815253381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 115200, while the sum is 40.

The square root of 4815253381 is about 69392.0267826211. The cubic root of 4815253381 is about 1688.6502745167.

The spelling of 4815253381 in words is "four billion, eight hundred fifteen million, two hundred fifty-three thousand, three hundred eighty-one".