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135928547 = 433161129
BaseRepresentation
bin10000001101000…
…01101011100011
3100110202212220122
420012201223203
5234244203142
621253230455
73240242066
oct1006415343
9313685818
10135928547
116a801147
123963242b
13222130c1
14140a48dd
15be001d2
hex81a1ae3

135928547 has 4 divisors (see below), whose sum is σ = 139089720. Its totient is φ = 132767376.

The previous prime is 135928531. The next prime is 135928553. The reversal of 135928547 is 745829531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 745829531 = 5507135433.

It is a cyclic number.

It is not a de Polignac number, because 135928547 - 24 = 135928531 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135928498 and 135928507.

It is not an unprimeable number, because it can be changed into a prime (135928567) 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, 1580522 + ... + 1580607.

It is an arithmetic number, because the mean of its divisors is an integer number (34772430).

Almost surely, 2135928547 is an apocalyptic number.

135928547 is a deficient number, since it is larger than the sum of its proper divisors (3161173).

135928547 is an equidigital number, since it uses as much as digits as its factorization.

135928547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3161172.

The product of its digits is 302400, while the sum is 44.

The square root of 135928547 is about 11658.8398650981. The cubic root of 135928547 is about 514.1662406960.

The spelling of 135928547 in words is "one hundred thirty-five million, nine hundred twenty-eight thousand, five hundred forty-seven".

Divisors: 1 43 3161129 135928547