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158068135 = 531613627
BaseRepresentation
bin10010110101111…
…10110110100111
3102000102200201101
421122332312213
5310431140020
623403540531
73626362021
oct1132766647
9360380641
10158068135
1181252a25
1244b2a747
1326995354
1416dc9011
15dd2500a
hex96beda7

158068135 has 4 divisors (see below), whose sum is σ = 189681768. Its totient is φ = 126454504.

The previous prime is 158068133. The next prime is 158068151. The reversal of 158068135 is 531860851.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 531860851 = 4312368857.

It is a cyclic number.

It is not a de Polignac number, because 158068135 - 21 = 158068133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 158068094 and 158068103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158068133) 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, 15806809 + ... + 15806818.

It is an arithmetic number, because the mean of its divisors is an integer number (47420442).

Almost surely, 2158068135 is an apocalyptic number.

158068135 is a deficient number, since it is larger than the sum of its proper divisors (31613633).

158068135 is an equidigital number, since it uses as much as digits as its factorization.

158068135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31613632.

The product of its (nonzero) digits is 28800, while the sum is 37.

The square root of 158068135 is about 12572.5150626277. The cubic root of 158068135 is about 540.6897165335.

It can be divided in two parts, 158068 and 135, that added together give a triangular number (158203 = T562).

The spelling of 158068135 in words is "one hundred fifty-eight million, sixty-eight thousand, one hundred thirty-five".

Divisors: 1 5 31613627 158068135