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147538085 = 529507617
BaseRepresentation
bin10001100101101…
…00000010100101
3101021121201012112
420302310002211
5300232204320
622350130405
73441024122
oct1062640245
9337551175
10147538085
1176310602
12414b0a05
1324749456
1415847749
15ce44ec5
hex8cb40a5

147538085 has 4 divisors (see below), whose sum is σ = 177045708. Its totient is φ = 118030464.

The previous prime is 147538009. The next prime is 147538093. The reversal of 147538085 is 580835741.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 580835741 = 2161268781.

It can be written as a sum of positive squares in 2 ways, for example, as 54434884 + 93103201 = 7378^2 + 9649^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-147538085 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14753804 + ... + 14753813.

It is an arithmetic number, because the mean of its divisors is an integer number (44261427).

Almost surely, 2147538085 is an apocalyptic number.

It is an amenable number.

147538085 is a deficient number, since it is larger than the sum of its proper divisors (29507623).

147538085 is an equidigital number, since it uses as much as digits as its factorization.

147538085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29507622.

The product of its (nonzero) digits is 134400, while the sum is 41.

The square root of 147538085 is about 12146.5256349295. The cubic root of 147538085 is about 528.4063735747.

The spelling of 147538085 in words is "one hundred forty-seven million, five hundred thirty-eight thousand, eighty-five".

Divisors: 1 5 29507617 147538085