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764020 = 22538201
BaseRepresentation
bin10111010100001110100
31102211001001
42322201310
5143422040
624213044
76331315
oct2724164
91384031
10764020
11482024
1230a184
132099aa
1415c60c
1510159a
hexba874

764020 has 12 divisors (see below), whose sum is σ = 1604484. Its totient is φ = 305600.

The previous prime is 764017. The next prime is 764021. The reversal of 764020 is 20467.

764020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 285156 + 478864 = 534^2 + 692^2 .

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (764021) 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, 19081 + ... + 19120.

It is an arithmetic number, because the mean of its divisors is an integer number (133707).

2764020 is an apocalyptic number.

It is an amenable number.

764020 is an abundant number, since it is smaller than the sum of its proper divisors (840464).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

764020 is a wasteful number, since it uses less digits than its factorization.

764020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38210 (or 38208 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 764020 is about 874.0823759807. The cubic root of 764020 is about 91.4186721983.

Adding to 764020 its reverse (20467), we get a palindrome (784487).

It can be divided in two parts, 76 and 4020, that added together give a 12-th power (4096 = 212).

The spelling of 764020 in words is "seven hundred sixty-four thousand, twenty".

Divisors: 1 2 4 5 10 20 38201 76402 152804 191005 382010 764020