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242404512 = 25371372633
BaseRepresentation
bin11100111001011…
…00110010100000
3121220010102110220
432130230302200
5444023421022
640015323040
76002255460
oct1634546240
9556112426
10242404512
11114916109
1269220480
133b2b342c
142429dba0
151643385c
hexe72cca0

242404512 has 96 divisors (see below), whose sum is σ = 732799872. Its totient is φ = 68726784.

The previous prime is 242404483. The next prime is 242404517. The reversal of 242404512 is 215404242.

It is a happy number.

242404512 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (242404517) 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 15 ways as a sum of consecutive naturals, for example, 90748 + ... + 93380.

It is an arithmetic number, because the mean of its divisors is an integer number (7633332).

Almost surely, 2242404512 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 242404512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (366399936).

242404512 is an abundant number, since it is smaller than the sum of its proper divisors (490395360).

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

242404512 is a wasteful number, since it uses less digits than its factorization.

242404512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2790 (or 2782 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 242404512 is about 15569.3452656173. The cubic root of 242404512 is about 623.5149912998.

Adding to 242404512 its reverse (215404242), we get a palindrome (457808754).

The spelling of 242404512 in words is "two hundred forty-two million, four hundred four thousand, five hundred twelve".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 84 96 112 137 168 224 274 336 411 548 672 822 959 1096 1644 1918 2192 2633 2877 3288 3836 4384 5266 5754 6576 7672 7899 10532 11508 13152 15344 15798 18431 21064 23016 30688 31596 36862 42128 46032 55293 63192 73724 84256 92064 110586 126384 147448 221172 252768 294896 360721 442344 589792 721442 884688 1082163 1442884 1769376 2164326 2525047 2885768 4328652 5050094 5771536 7575141 8657304 10100188 11543072 15150282 17314608 20200376 30300564 34629216 40400752 60601128 80801504 121202256 242404512