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242504401 = 376554173
BaseRepresentation
bin11100111010001…
…01001011010001
3121220022111111111
432131011023101
5444040120101
640021413321
76003152626
oct1635051321
9556274444
10242504401
11114984167
126926a241
133b319a39
14242c834d
1516453251
hexe7452d1

242504401 has 4 divisors (see below), whose sum is σ = 249058612. Its totient is φ = 235950192.

The previous prime is 242504393. The next prime is 242504411. The reversal of 242504401 is 104405242.

It is a happy number.

242504401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 104405242 = 252202621.

It can be written as a sum of positive squares in 2 ways, for example, as 172948801 + 69555600 = 13151^2 + 8340^2 .

It is a cyclic number.

It is not a de Polignac number, because 242504401 - 23 = 242504393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242504411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3277050 + ... + 3277123.

It is an arithmetic number, because the mean of its divisors is an integer number (62264653).

Almost surely, 2242504401 is an apocalyptic number.

It is an amenable number.

242504401 is a deficient number, since it is larger than the sum of its proper divisors (6554211).

242504401 is an equidigital number, since it uses as much as digits as its factorization.

242504401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6554210.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 242504401 is about 15572.5528093502. The cubic root of 242504401 is about 623.6006246562.

Adding to 242504401 its reverse (104405242), we get a palindrome (346909643).

The spelling of 242504401 in words is "two hundred forty-two million, five hundred four thousand, four hundred one".

Divisors: 1 37 6554173 242504401