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285340054381 = 1996311559329
BaseRepresentation
bin1000010011011111001…
…01111011001101101101
31000021111211122121222021
410021233211323031231
514133334023220011
6335030003350141
726420664305164
oct4115745731555
91007454577867
10285340054381
11100015027168
1247373982351
1320ba4895b85
14db4c15a3db
15765066b471
hex426f97b36d

285340054381 has 8 divisors (see below), whose sum is σ = 300389331200. Its totient is φ = 270293915520.

The previous prime is 285340054369. The next prime is 285340054397. The reversal of 285340054381 is 183450043582.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 285340054381 - 215 = 285340021613 is a prime.

It is a super-2 number, since 2×2853400543812 (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285340024381) 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 7 ways as a sum of consecutive naturals, for example, 596676 + ... + 962653.

It is an arithmetic number, because the mean of its divisors is an integer number (37548666400).

Almost surely, 2285340054381 is an apocalyptic number.

It is an amenable number.

285340054381 is a deficient number, since it is larger than the sum of its proper divisors (15049276819).

285340054381 is a wasteful number, since it uses less digits than its factorization.

285340054381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1568979.

The product of its (nonzero) digits is 460800, while the sum is 43.

The spelling of 285340054381 in words is "two hundred eighty-five billion, three hundred forty million, fifty-four thousand, three hundred eighty-one".

Divisors: 1 19 9631 182989 1559329 29627251 15017897599 285340054381