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135419489 = 263514903
BaseRepresentation
bin10000001001001…
…01011001100001
3100102211000121122
420010211121201
5234131410424
621234302025
73233022002
oct1004453141
9312730548
10135419489
116a493737
1239427915
132209549a
1413db11a9
15bd4e45e
hex8125661

135419489 has 4 divisors (see below), whose sum is σ = 135934656. Its totient is φ = 134904324.

The previous prime is 135419461. The next prime is 135419497. The reversal of 135419489 is 984914531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 135419489 - 28 = 135419233 is a prime.

It is a super-2 number, since 2×1354194892 = 36676876002042242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135419419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 257189 + ... + 257714.

It is an arithmetic number, because the mean of its divisors is an integer number (33983664).

Almost surely, 2135419489 is an apocalyptic number.

It is an amenable number.

135419489 is a deficient number, since it is larger than the sum of its proper divisors (515167).

135419489 is an equidigital number, since it uses as much as digits as its factorization.

135419489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515166.

The product of its digits is 155520, while the sum is 44.

The square root of 135419489 is about 11636.9879694017. The cubic root of 135419489 is about 513.5235798560.

The spelling of 135419489 in words is "one hundred thirty-five million, four hundred nineteen thousand, four hundred eighty-nine".

Divisors: 1 263 514903 135419489