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8285740 = 225974271
BaseRepresentation
bin11111100110111000101100
3120120221220021
4133212320230
54110120430
6453331524
7130266451
oct37467054
916527807
108285740
11474a221
122936ba4
131941508
141159828
15ada07a
hex7e6e2c

8285740 has 24 divisors (see below), whose sum is σ = 17583552. Its totient is φ = 3279360.

The previous prime is 8285723. The next prime is 8285789. The reversal of 8285740 is 475828.

It is a junction number, because it is equal to n+sod(n) for n = 8285696 and 8285705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196 + ... + 4075.

It is an arithmetic number, because the mean of its divisors is an integer number (732648).

Almost surely, 28285740 is an apocalyptic number.

It is an amenable number.

8285740 is an abundant number, since it is smaller than the sum of its proper divisors (9297812).

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

8285740 is a wasteful number, since it uses less digits than its factorization.

8285740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4377 (or 4375 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 34.

The square root of 8285740 is about 2878.4961351372. The cubic root of 8285740 is about 202.3533663855.

It can be divided in two parts, 8285 and 740, that added together give a square (9025 = 952).

The spelling of 8285740 in words is "eight million, two hundred eighty-five thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 97 194 388 485 970 1940 4271 8542 17084 21355 42710 85420 414287 828574 1657148 2071435 4142870 8285740