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242352873 = 3272549553
BaseRepresentation
bin11100111001000…
…00001011101001
3121220000210122100
432130200023221
5444020242443
640014244013
76001652100
oct1634401351
9556023570
10242352873
11114890334
12691b6609
133b295a89
1424289037
15164233d3
hexe7202e9

242352873 has 18 divisors (see below), whose sum is σ = 407219514. Its totient is φ = 138487104.

The previous prime is 242352871. The next prime is 242352881. The reversal of 242352873 is 378253242.

It can be written as a sum of positive squares in only one way, i.e., 199148544 + 43204329 = 14112^2 + 6573^2 .

It is not a de Polignac number, because 242352873 - 21 = 242352871 is a prime.

It is not an unprimeable number, because it can be changed into a prime (242352871) 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 17 ways as a sum of consecutive naturals, for example, 274336 + ... + 275217.

Almost surely, 2242352873 is an apocalyptic number.

It is an amenable number.

242352873 is a deficient number, since it is larger than the sum of its proper divisors (164866641).

242352873 is a wasteful number, since it uses less digits than its factorization.

242352873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549573 (or 549563 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 242352873 is about 15567.6868223895. The cubic root of 242352873 is about 623.4707127274.

The spelling of 242352873 in words is "two hundred forty-two million, three hundred fifty-two thousand, eight hundred seventy-three".

Divisors: 1 3 7 9 21 49 63 147 441 549553 1648659 3846871 4945977 11540613 26928097 34621839 80784291 242352873