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253859129 is a prime number
BaseRepresentation
bin11110010000110…
…01010100111001
3122200200101020222
433020121110321
51004441443004
641105025425
76201524036
oct1710312471
9580611228
10253859129
1112032a137
1271025275
1340794104
1425a0238d
15174477be
hexf219539

253859129 has 2 divisors, whose sum is σ = 253859130. Its totient is φ = 253859128.

The previous prime is 253859101. The next prime is 253859159. The reversal of 253859129 is 921958352.

253859129 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 251539600 + 2319529 = 15860^2 + 1523^2 .

It is a cyclic number.

It is not a de Polignac number, because 253859129 - 28 = 253858873 is a prime.

It is a super-3 number, since 3×2538591293 (a number of 26 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 253859129.

It is not a weakly prime, because it can be changed into another prime (253859159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126929564 + 126929565.

It is an arithmetic number, because the mean of its divisors is an integer number (126929565).

Almost surely, 2253859129 is an apocalyptic number.

It is an amenable number.

253859129 is a deficient number, since it is larger than the sum of its proper divisors (1).

253859129 is an equidigital number, since it uses as much as digits as its factorization.

253859129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 194400, while the sum is 44.

The square root of 253859129 is about 15932.9573212257. The cubic root of 253859129 is about 633.1854527924.

The spelling of 253859129 in words is "two hundred fifty-three million, eight hundred fifty-nine thousand, one hundred twenty-nine".