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1075825845 = 32523907241
BaseRepresentation
bin100000000011111…
…1100110010110101
32202222100121121200
41000013330302311
54200402411340
6254430403113
735442240333
oct10007746265
92688317550
101075825845
11502303976
12260360499
13141b68653
14a2c48b53
15646ad330
hex401fccb5

1075825845 has 12 divisors (see below), whose sum is σ = 1864764876. Its totient is φ = 573773760.

The previous prime is 1075825843. The next prime is 1075825873. The reversal of 1075825845 is 5485285701.

1075825845 is a `hidden beast` number, since 10 + 7 + 58 + 2 + 584 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 655001649 + 420824196 = 25593^2 + 20514^2 .

It is not a de Polignac number, because 1075825845 - 21 = 1075825843 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 23907241 = 1075825845 / (1 + 0 + 7 + 5 + 8 + 2 + 5 + 8 + 4 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 1075825845.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1075825843) 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, 11953576 + ... + 11953665.

It is an arithmetic number, because the mean of its divisors is an integer number (155397073).

Almost surely, 21075825845 is an apocalyptic number.

1075825845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1075825845 is a deficient number, since it is larger than the sum of its proper divisors (788939031).

1075825845 is a wasteful number, since it uses less digits than its factorization.

1075825845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23907252 (or 23907249 counting only the distinct ones).

The product of its (nonzero) digits is 448000, while the sum is 45.

The square root of 1075825845 is about 32799.7842218512. The cubic root of 1075825845 is about 1024.6620642862.

The spelling of 1075825845 in words is "one billion, seventy-five million, eight hundred twenty-five thousand, eight hundred forty-five".

Divisors: 1 3 5 9 15 45 23907241 71721723 119536205 215165169 358608615 1075825845