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150257281 is a prime number
BaseRepresentation
bin10001111010010…
…11111010000001
3101110201212020111
420331023322001
5301431213111
622524311321
73503110606
oct1075137201
9343655214
10150257281
11778a8579
12423a2541
132518c045
1415d546ad
15d2d0a21
hex8f4be81

150257281 has 2 divisors, whose sum is σ = 150257282. Its totient is φ = 150257280.

The previous prime is 150257269. The next prime is 150257291. The reversal of 150257281 is 182752051.

150257281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 121000000 + 29257281 = 11000^2 + 5409^2 .

It is a cyclic number.

It is not a de Polignac number, because 150257281 - 25 = 150257249 is a prime.

It is a super-2 number, since 2×1502572812 = 45154500987025922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (150257201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75128640 + 75128641.

It is an arithmetic number, because the mean of its divisors is an integer number (75128641).

Almost surely, 2150257281 is an apocalyptic number.

It is an amenable number.

150257281 is a deficient number, since it is larger than the sum of its proper divisors (1).

150257281 is an equidigital number, since it uses as much as digits as its factorization.

150257281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5600, while the sum is 31.

The square root of 150257281 is about 12257.9476667181. The cubic root of 150257281 is about 531.6328909186.

The spelling of 150257281 in words is "one hundred fifty million, two hundred fifty-seven thousand, two hundred eighty-one".