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242585671680 = 21132511271883
BaseRepresentation
bin1110000111101100111…
…0111001100000000000
3212012011012201221201200
43201323032321200000
512433303412443210
6303235312501200
723345333121132
oct3417316714000
9765135657650
10242585671680
1193975318690
123b02154a800
1319b4cc98981
14ba53c41052
15649be5b0c0
hex387b3b9800

242585671680 has 576 divisors, whose sum is σ = 921617948160. Its totient is φ = 58525286400.

The previous prime is 242585671649. The next prime is 242585671739. The reversal of 242585671680 is 86176585242.

242585671680 is a `hidden beast` number, since 2 + 42 + 585 + 6 + 7 + 16 + 8 + 0 = 666.

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

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 47 ways as a sum of consecutive naturals, for example, 274728519 + ... + 274729401.

It is an arithmetic number, because the mean of its divisors is an integer number (1600031160).

Almost surely, 2242585671680 is an apocalyptic number.

242585671680 is a gapful number since it is divisible by the number (20) 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 242585671680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (460808974080).

242585671680 is an abundant number, since it is smaller than the sum of its proper divisors (679032276480).

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

242585671680 is a wasteful number, since it uses less digits than its factorization.

242585671680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1198 (or 1175 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 54.

The spelling of 242585671680 in words is "two hundred forty-two billion, five hundred eighty-five million, six hundred seventy-one thousand, six hundred eighty".