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672284061 = 32292575801
BaseRepresentation
bin101000000100100…
…011110110011101
31201212000120100200
4220010203312131
52334101042221
6150413214113
722442214561
oct5004436635
91655016320
10672284061
11315539a69
12169191339
13a9386c27
14654016a1
153e04a426
hex28123d9d

672284061 has 12 divisors (see below), whose sum is σ = 1004562780. Its totient is φ = 432734400.

The previous prime is 672284047. The next prime is 672284077. The reversal of 672284061 is 160482276.

It can be written as a sum of positive squares in 2 ways, for example, as 429111225 + 243172836 = 20715^2 + 15594^2 .

It is not a de Polignac number, because 672284061 - 27 = 672283933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672284021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1287640 + ... + 1288161.

It is an arithmetic number, because the mean of its divisors is an integer number (83713565).

Almost surely, 2672284061 is an apocalyptic number.

It is an amenable number.

672284061 is a deficient number, since it is larger than the sum of its proper divisors (332278719).

672284061 is a wasteful number, since it uses less digits than its factorization.

672284061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2575836 (or 2575833 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 672284061 is about 25928.4411602395. The cubic root of 672284061 is about 876.0272283086.

It can be divided in two parts, 67228 and 4061, that added together give a square (71289 = 2672).

The spelling of 672284061 in words is "six hundred seventy-two million, two hundred eighty-four thousand, sixty-one".

Divisors: 1 3 9 29 87 261 2575801 7727403 23182209 74698229 224094687 672284061