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75285234401 = 1331775724133
BaseRepresentation
bin100011000011101011…
…0011000001011100001
321012022202110011110212
41012013112120023201
52213141010000101
654330251503505
75303431635206
oct1060726301341
9235282404425
1075285234401
1129a23608993
1212710a57b95
13713a4042a0
143902925cad
151e5960b1bb
hex11875982e1

75285234401 has 16 divisors (see below), whose sum is σ = 81442982544. Its totient is φ = 69180459264.

The previous prime is 75285234397. The next prime is 75285234407. The reversal of 75285234401 is 10443258257.

It can be written as a sum of positive squares in 8 ways, for example, as 13311621376 + 61973613025 = 115376^2 + 248945^2 .

It is a cyclic number.

It is not a de Polignac number, because 75285234401 - 22 = 75285234397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75285234407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3107531 + ... + 3131663.

It is an arithmetic number, because the mean of its divisors is an integer number (5090186409).

Almost surely, 275285234401 is an apocalyptic number.

It is an amenable number.

75285234401 is a deficient number, since it is larger than the sum of its proper divisors (6157748143).

75285234401 is a wasteful number, since it uses less digits than its factorization.

75285234401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25220.

The product of its (nonzero) digits is 268800, while the sum is 41.

The spelling of 75285234401 in words is "seventy-five billion, two hundred eighty-five million, two hundred thirty-four thousand, four hundred one".

Divisors: 1 13 317 757 4121 9841 24133 239969 313729 3119597 7650161 18268681 99452093 237492853 5791171877 75285234401