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542291484672 = 21332719291907
BaseRepresentation
bin1111110010000110001…
…01110110000000000000
31220211202020002201202200
413321003011312000000
532341103110002142
61053043020313200
754115326364440
oct7710305660000
91824666081680
10542291484672
11199a91450923
12891243a2800
133c1a3b83612
141c365c84120
15e18d8a864c
hex7e43176000

542291484672 has 672 divisors, whose sum is σ = 1950546873600. Its totient is φ = 141649772544.

The previous prime is 542291484629. The next prime is 542291484673. The reversal of 542291484672 is 276484192245.

542291484672 is a `hidden beast` number, since 5 + 4 + 2 + 2 + 91 + 484 + 6 + 72 = 666.

It is a tau number, because it is divible by the number of its divisors (672).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542291484673) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 284367943 + ... + 284369849.

Almost surely, 2542291484672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 542291484672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (975273436800).

542291484672 is an abundant number, since it is smaller than the sum of its proper divisors (1408255388928).

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

542291484672 is a wasteful number, since it uses less digits than its factorization.

542291484672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1994 (or 1967 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 54.

The spelling of 542291484672 in words is "five hundred forty-two billion, two hundred ninety-one million, four hundred eighty-four thousand, six hundred seventy-two".