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8019485 = 51603897
BaseRepresentation
bin11110100101111000011101
3120002102122222
4132211320131
54023110420
6443515125
7125110265
oct36457035
916072588
108019485
114588181
122828aa5
13187a276
1410ca7a5
15a86225
hex7a5e1d

8019485 has 4 divisors (see below), whose sum is σ = 9623388. Its totient is φ = 6415584.

The previous prime is 8019481. The next prime is 8019509. The reversal of 8019485 is 5849108.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3345241 + 4674244 = 1829^2 + 2162^2 .

It is a cyclic number.

It is not a de Polignac number, because 8019485 - 22 = 8019481 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8019481) 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, 801944 + ... + 801953.

It is an arithmetic number, because the mean of its divisors is an integer number (2405847).

Almost surely, 28019485 is an apocalyptic number.

It is an amenable number.

8019485 is a deficient number, since it is larger than the sum of its proper divisors (1603903).

8019485 is a wasteful number, since it uses less digits than its factorization.

8019485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1603902.

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 8019485 is about 2831.8695238305. The cubic root of 8019485 is about 200.1622433499.

The spelling of 8019485 in words is "eight million, nineteen thousand, four hundred eighty-five".

Divisors: 1 5 1603897 8019485