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381934390580 = 22519096719529
BaseRepresentation
bin1011000111011010001…
…00000100110100110100
31100111211122221022202122
411203231010010310310
522224200200444310
6451242551255112
736410455516541
oct5435504046464
91314748838678
10381934390580
11137a83008686
126203107a498
132a029948822
14146b2b77bc8
159e058d0555
hex58ed104d34

381934390580 has 12 divisors (see below), whose sum is σ = 802062220260. Its totient is φ = 152773756224.

The previous prime is 381934390577. The next prime is 381934390601. The reversal of 381934390580 is 85093439183.

It can be written as a sum of positive squares in 2 ways, for example, as 41396785444 + 340537605136 = 203462^2 + 583556^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9548359745 + ... + 9548359784.

It is an arithmetic number, because the mean of its divisors is an integer number (66838518355).

Almost surely, 2381934390580 is an apocalyptic number.

It is an amenable number.

381934390580 is an abundant number, since it is smaller than the sum of its proper divisors (420127829680).

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

381934390580 is a wasteful number, since it uses less digits than its factorization.

381934390580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19096719538 (or 19096719536 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 53.

The spelling of 381934390580 in words is "three hundred eighty-one billion, nine hundred thirty-four million, three hundred ninety thousand, five hundred eighty".

Divisors: 1 2 4 5 10 20 19096719529 38193439058 76386878116 95483597645 190967195290 381934390580