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755280030 = 23525176001
BaseRepresentation
bin101101000001001…
…010100010011110
31221122012012102110
4231001022202132
53021322430110
6202540134450
724500526411
oct5501124236
91848165373
10755280030
1135837707a
12190b37426
13c0625b7b
1472447b78
1546491a20
hex2d04a89e

755280030 has 16 divisors (see below), whose sum is σ = 1812672144. Its totient is φ = 201408000.

The previous prime is 755280007. The next prime is 755280059. The reversal of 755280030 is 30082557.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 25176001 = 755280030 / (7 + 5 + 5 + 2 + 8 + 0 + 0 + 3 + 0).

It is a self number, because there is not a number n which added to its sum of digits gives 755280030.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 12587971 + ... + 12588030.

It is an arithmetic number, because the mean of its divisors is an integer number (113292009).

Almost surely, 2755280030 is an apocalyptic number.

755280030 is an abundant number, since it is smaller than the sum of its proper divisors (1057392114).

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

755280030 is a wasteful number, since it uses less digits than its factorization.

755280030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25176011.

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 755280030 is about 27482.3585232418. The cubic root of 755280030 is about 910.6874128128.

The spelling of 755280030 in words is "seven hundred fifty-five million, two hundred eighty thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 25176001 50352002 75528003 125880005 151056006 251760010 377640015 755280030