Search a number
-
+
286253881344 = 21132234143383
BaseRepresentation
bin1000010101001100000…
…11111001100000000000
31000100212112011211220100
410022212003321200000
514142221443200334
6335300410042400
726452431562554
oct4124603714000
91010775154810
10286253881344
11100443942962
1247589a19400
1320cbbcc0ca2
14dbd7675864
1576a59c9c99
hex42a60f9800

286253881344 has 576 divisors, whose sum is σ = 906654228480. Its totient is φ = 86745415680.

The previous prime is 286253881343. The next prime is 286253881351. The reversal of 286253881344 is 443188352682.

286253881344 is a `hidden beast` number, since 2 + 8 + 62 + 538 + 8 + 1 + 3 + 44 = 666.

It is a tau number, because it is divible by the number of its divisors (576).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (286253881343) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 747398977 + ... + 747399359.

It is an arithmetic number, because the mean of its divisors is an integer number (1574052480).

Almost surely, 2286253881344 is an apocalyptic number.

286253881344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 286253881344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (453327114240).

286253881344 is an abundant number, since it is smaller than the sum of its proper divisors (620400347136).

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

286253881344 is a wasteful number, since it uses less digits than its factorization.

286253881344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518 (or 495 counting only the distinct ones).

The product of its digits is 8847360, while the sum is 54.

The spelling of 286253881344 in words is "two hundred eighty-six billion, two hundred fifty-three million, eight hundred eighty-one thousand, three hundred forty-four".