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242131201 = 1321432729
BaseRepresentation
bin11100110111010…
…10000100000001
3121212121112120021
432123222010001
5443441144301
640005413441
76000036604
oct1633520401
9555545507
10242131201
11114749834
126910a281
133b218c00
142422c33b
15163cc8a1
hexe6ea101

242131201 has 6 divisors (see below), whose sum is σ = 262189590. Its totient is φ = 223505568.

The previous prime is 242131181. The next prime is 242131217. The reversal of 242131201 is 102131242.

It can be written as a sum of positive squares in 3 ways, for example, as 3459600 + 238671601 = 1860^2 + 15449^2 .

It is not a de Polignac number, because 242131201 - 27 = 242131073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (242131261) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 716196 + ... + 716533.

It is an arithmetic number, because the mean of its divisors is an integer number (43698265).

Almost surely, 2242131201 is an apocalyptic number.

It is an amenable number.

242131201 is a deficient number, since it is larger than the sum of its proper divisors (20058389).

242131201 is a wasteful number, since it uses less digits than its factorization.

242131201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1432755 (or 1432742 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 242131201 is about 15560.5655745542. The cubic root of 242131201 is about 623.2805655300.

Adding to 242131201 its reverse (102131242), we get a palindrome (344262443).

The spelling of 242131201 in words is "two hundred forty-two million, one hundred thirty-one thousand, two hundred one".

Divisors: 1 13 169 1432729 18625477 242131201