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755281028 = 22188820257
BaseRepresentation
bin101101000001001…
…010110010000100
31221122012020210102
4231001022302010
53021322443103
6202540143232
724500532335
oct5501126204
91848166712
10755281028
113583778a7
12190b37b18
13c0626468
147244828c
1546491e88
hex2d04ac84

755281028 has 6 divisors (see below), whose sum is σ = 1321741806. Its totient is φ = 377640512.

The previous prime is 755281019. The next prime is 755281057. The reversal of 755281028 is 820182557.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 630913924 + 124367104 = 25118^2 + 11152^2 .

It is a junction number, because it is equal to n+sod(n) for n = 755280982 and 755281000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94410125 + ... + 94410132.

It is an arithmetic number, because the mean of its divisors is an integer number (220290301).

Almost surely, 2755281028 is an apocalyptic number.

It is an amenable number.

755281028 is a deficient number, since it is larger than the sum of its proper divisors (566460778).

755281028 is a wasteful number, since it uses less digits than its factorization.

755281028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188820261 (or 188820259 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 38.

The square root of 755281028 is about 27482.3766803383. The cubic root of 755281028 is about 910.6878139292.

The spelling of 755281028 in words is "seven hundred fifty-five million, two hundred eighty-one thousand, twenty-eight".

Divisors: 1 2 4 188820257 377640514 755281028