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180038794484 = 22113398315917
BaseRepresentation
bin1010011110101100100…
…1011111110011110100
3122012201012202101021102
42213223021133303310
510422204412410414
6214413024105232
716002346334363
oct2475311376364
9565635671242
10180038794484
116a39922a03a
122aa86765218
1313c929a8473
1489dd0177da
154a3ad1cede
hex29eb25fcf4

180038794484 has 12 divisors (see below), whose sum is σ = 317856102564. Its totient is φ = 89222765184.

The previous prime is 180038794417. The next prime is 180038794489. The reversal of 180038794484 is 484497830081.

It can be written as a sum of positive squares in 2 ways, for example, as 16685405584 + 163353388900 = 129172^2 + 404170^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180038794489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 199157507 + ... + 199158410.

It is an arithmetic number, because the mean of its divisors is an integer number (26488008547).

Almost surely, 2180038794484 is an apocalyptic number.

It is an amenable number.

180038794484 is a deficient number, since it is larger than the sum of its proper divisors (137817308080).

180038794484 is a wasteful number, since it uses less digits than its factorization.

180038794484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398316034 (or 398316032 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 56.

The spelling of 180038794484 in words is "one hundred eighty billion, thirty-eight million, seven hundred ninety-four thousand, four hundred eighty-four".

Divisors: 1 2 4 113 226 452 398315917 796631834 1593263668 45009698621 90019397242 180038794484