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135044427 = 376430687
BaseRepresentation
bin10000000110010…
…01110101001011
3100102002222010110
420003021311023
5234032410202
621222245403
73226600350
oct1003116513
9312088113
10135044427
116a257971
1239286863
1321c9385b
1413d14627
15bcc826c
hex80c9d4b

135044427 has 8 divisors (see below), whose sum is σ = 205782016. Its totient is φ = 77168232.

The previous prime is 135044407. The next prime is 135044443. The reversal of 135044427 is 724440531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 135044427 - 214 = 135028043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135044394 and 135044403.

It is not an unprimeable number, because it can be changed into a prime (135044407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3215323 + ... + 3215364.

It is an arithmetic number, because the mean of its divisors is an integer number (25722752).

Almost surely, 2135044427 is an apocalyptic number.

135044427 is a deficient number, since it is larger than the sum of its proper divisors (70737589).

135044427 is an equidigital number, since it uses as much as digits as its factorization.

135044427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6430697.

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 135044427 is about 11620.8617150365. The cubic root of 135044427 is about 513.0490512396.

Adding to 135044427 its reverse (724440531), we get a palindrome (859484958).

The spelling of 135044427 in words is "one hundred thirty-five million, forty-four thousand, four hundred twenty-seven".

Divisors: 1 3 7 21 6430687 19292061 45014809 135044427