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135430254 = 23213754919
BaseRepresentation
bin10000001001010…
…00000001101110
3100102211120101100
420010220001232
5234132232004
621234423530
73233065251
oct1004500156
9312746340
10135430254
116a4a0833
1239431ba6
132209a35b
1413db5098
15bd52739
hex812806e

135430254 has 24 divisors (see below), whose sum is σ = 295579440. Its totient is φ = 44813088.

The previous prime is 135430231. The next prime is 135430277. The reversal of 135430254 is 452034531.

135430254 is a `hidden beast` number, since 1 + 354 + 302 + 5 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (135430231) and next prime (135430277).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24994 + ... + 29925.

It is an arithmetic number, because the mean of its divisors is an integer number (12315810).

Almost surely, 2135430254 is an apocalyptic number.

135430254 is an abundant number, since it is smaller than the sum of its proper divisors (160149186).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135430254 is a wasteful number, since it uses less digits than its factorization.

135430254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55064 (or 55061 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 135430254 is about 11637.4504939871. The cubic root of 135430254 is about 513.5371867967.

Adding to 135430254 its reverse (452034531), we get a palindrome (587464785).

The spelling of 135430254 in words is "one hundred thirty-five million, four hundred thirty thousand, two hundred fifty-four".

Divisors: 1 2 3 6 9 18 137 274 411 822 1233 2466 54919 109838 164757 329514 494271 988542 7523903 15047806 22571709 45143418 67715127 135430254