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755140 = 225172221
BaseRepresentation
bin10111000010111000100
31102100212011
42320113010
5143131030
624104004
76263401
oct2702704
91370764
10755140
11476391
12305004
13205939
141592a8
15edb2a
hexb85c4

755140 has 24 divisors (see below), whose sum is σ = 1679832. Its totient is φ = 284160.

The previous prime is 755137. The next prime is 755143. The reversal of 755140 is 41557.

It is an interprime number because it is at equal distance from previous prime (755137) and next prime (755143).

It can be written as a sum of positive squares in 4 ways, for example, as 213444 + 541696 = 462^2 + 736^2 .

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (755143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 771 + ... + 1450.

It is an arithmetic number, because the mean of its divisors is an integer number (69993).

2755140 is an apocalyptic number.

It is an amenable number.

755140 is an abundant number, since it is smaller than the sum of its proper divisors (924692).

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

755140 is a wasteful number, since it uses less digits than its factorization.

755140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2247 (or 2245 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 22.

The square root of 755140 is about 868.9879170621. The cubic root of 755140 is about 91.0631128417.

Adding to 755140 its reverse (41557), we get a palindrome (796697).

The spelling of 755140 in words is "seven hundred fifty-five thousand, one hundred forty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 2221 4442 8884 11105 22210 37757 44420 75514 151028 188785 377570 755140