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134354431 = 237973943
BaseRepresentation
bin10000000001000…
…01010111111111
3100100210220122001
420000201113333
5233343320211
621155403131
73220664611
oct1000412777
9310726561
10134354431
1169926522
1238bb34a7
1321ab1783
1413bb4db1
15bbddac1
hex80215ff

134354431 has 8 divisors (see below), whose sum is σ = 141972480. Its totient is φ = 126884472.

The previous prime is 134354351. The next prime is 134354503. The reversal of 134354431 is 134453431.

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

It is a cyclic number.

It is not a de Polignac number, because 134354431 - 217 = 134223359 is a prime.

It is a super-2 number, since 2×1343544312 = 36102226258667522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 134354431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134358431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35155 + ... + 38788.

It is an arithmetic number, because the mean of its divisors is an integer number (17746560).

Almost surely, 2134354431 is an apocalyptic number.

134354431 is a deficient number, since it is larger than the sum of its proper divisors (7618049).

134354431 is an equidigital number, since it uses as much as digits as its factorization.

134354431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74045.

The product of its digits is 8640, while the sum is 28.

The square root of 134354431 is about 11591.1358804907. The cubic root of 134354431 is about 512.1737678716.

The spelling of 134354431 in words is "one hundred thirty-four million, three hundred fifty-four thousand, four hundred thirty-one".

Divisors: 1 23 79 1817 73943 1700689 5841497 134354431