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755225169 = 3251741723
BaseRepresentation
bin101101000000111…
…101001001010001
31221122002102011120
4231000331021101
53021314201134
6202535032453
724500210436
oct5500751121
91848072146
10755225169
11358339936
12190b0b729
13c0606bca
1472431b8d
1546480649
hex2d03d251

755225169 has 4 divisors (see below), whose sum is σ = 1006966896. Its totient is φ = 503483444.

The previous prime is 755225161. The next prime is 755225173. The reversal of 755225169 is 961522557.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 961522557 = 3320507519.

It is a cyclic number.

It is not a de Polignac number, because 755225169 - 23 = 755225161 is a prime.

It is a super-2 number, since 2×7552251692 = 1140730111782157122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 755225169.

It is not an unprimeable number, because it can be changed into a prime (755225161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125870859 + ... + 125870864.

It is an arithmetic number, because the mean of its divisors is an integer number (251741724).

Almost surely, 2755225169 is an apocalyptic number.

It is an amenable number.

755225169 is a deficient number, since it is larger than the sum of its proper divisors (251741727).

755225169 is a wasteful number, since it uses less digits than its factorization.

755225169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251741726.

The product of its digits is 189000, while the sum is 42.

The square root of 755225169 is about 27481.3603920912. The cubic root of 755225169 is about 910.6653625225.

The spelling of 755225169 in words is "seven hundred fifty-five million, two hundred twenty-five thousand, one hundred sixty-nine".

Divisors: 1 3 251741723 755225169