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134770431 = 391948883
BaseRepresentation
bin10000000100001…
…10111011111111
3100101121001021110
420002012323333
5234000123211
621212333103
73224346465
oct1002067377
9311531243
10134770431
116a090024
1239174193
1321bc8c23
1413c82835
15bc71ea6
hex8086eff

134770431 has 8 divisors (see below), whose sum is σ = 179893120. Its totient is φ = 89747352.

The previous prime is 134770429. The next prime is 134770451. The reversal of 134770431 is 134077431.

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

It is not a de Polignac number, because 134770431 - 21 = 134770429 is a prime.

It is a super-2 number, since 2×1347704312 = 36326138143851522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134770421) 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, 21685 + ... + 27198.

It is an arithmetic number, because the mean of its divisors is an integer number (22486640).

Almost surely, 2134770431 is an apocalyptic number.

134770431 is a deficient number, since it is larger than the sum of its proper divisors (45122689).

134770431 is an equidigital number, since it uses as much as digits as its factorization.

134770431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49805.

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 134770431 is about 11609.0667583575. The cubic root of 134770431 is about 512.7018357107.

The spelling of 134770431 in words is "one hundred thirty-four million, seven hundred seventy thousand, four hundred thirty-one".

Divisors: 1 3 919 2757 48883 146649 44923477 134770431