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36147421 = 232296863
BaseRepresentation
bin1000100111100…
…1000011011101
32112000110221101
42021321003131
533223204141
63330433101
7616151032
oct211710335
975013841
1036147421
111944a102
1210132791
13764810b
144b2d389
153290531
hex22790dd

36147421 has 8 divisors (see below), whose sum is σ = 37889280. Its totient is φ = 34419792.

The previous prime is 36147407. The next prime is 36147451. The reversal of 36147421 is 12474163.

36147421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is the 2455-th star number.

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 36147421 - 29 = 36146909 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 36147421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36147451) 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, 1836 + ... + 8698.

It is an arithmetic number, because the mean of its divisors is an integer number (4736160).

Almost surely, 236147421 is an apocalyptic number.

It is an amenable number.

36147421 is a deficient number, since it is larger than the sum of its proper divisors (1741859).

36147421 is a wasteful number, since it uses less digits than its factorization.

36147421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7115.

The product of its digits is 4032, while the sum is 28.

The square root of 36147421 is about 6012.2725320797. The cubic root of 36147421 is about 330.6428271804.

The spelling of 36147421 in words is "thirty-six million, one hundred forty-seven thousand, four hundred twenty-one".

Divisors: 1 23 229 5267 6863 157849 1571627 36147421