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246242421 = 32613131433
BaseRepresentation
bin11101010110101…
…01110001110101
3122011100102002200
432223111301311
51001014224141
640233455113
76050011635
oct1653256165
9564312080
10246242421
11116aa7637
126a571499
133c028299
14249bc6c5
1516940ab6
hexead5c75

246242421 has 24 divisors (see below), whose sum is σ = 362922456. Its totient is φ = 160842240.

The previous prime is 246242419. The next prime is 246242431. The reversal of 246242421 is 124242642.

It can be written as a sum of positive squares in 4 ways, for example, as 1664100 + 244578321 = 1290^2 + 15639^2 .

It is not a de Polignac number, because 246242421 - 21 = 246242419 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (246242431) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 171121 + ... + 172553.

It is an arithmetic number, because the mean of its divisors is an integer number (15121769).

Almost surely, 2246242421 is an apocalyptic number.

It is an amenable number.

246242421 is a deficient number, since it is larger than the sum of its proper divisors (116680035).

246242421 is a wasteful number, since it uses less digits than its factorization.

246242421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1813 (or 1810 counting only the distinct ones).

The product of its digits is 6144, while the sum is 27.

The square root of 246242421 is about 15692.1133375973. The cubic root of 246242421 is about 626.7884102476.

The spelling of 246242421 in words is "two hundred forty-six million, two hundred forty-two thousand, four hundred twenty-one".

Divisors: 1 3 9 61 183 313 549 939 1433 2817 4299 12897 19093 57279 87413 171837 262239 448529 786717 1345587 4036761 27360269 82080807 246242421