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242104541 = 724940909
BaseRepresentation
bin11100110111000…
…11100011011101
3121212120011222212
432123203203131
5443434321131
640005050205
75666566100
oct1633434335
9555504885
10242104541
111147307a8
12690b6965
133b209a33
1424222737
15163c4a2b
hexe6e38dd

242104541 has 6 divisors (see below), whose sum is σ = 281631870. Its totient is φ = 207518136.

The previous prime is 242104493. The next prime is 242104543. The reversal of 242104541 is 145401242.

It can be written as a sum of positive squares in only one way, i.e., 174108025 + 67996516 = 13195^2 + 8246^2 .

It is a de Polignac number, because none of the positive numbers 2k-242104541 is a prime.

It is a super-2 number, since 2×2421045412 = 117229217545641362, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242104543) 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 5 ways as a sum of consecutive naturals, for example, 2470406 + ... + 2470503.

It is an arithmetic number, because the mean of its divisors is an integer number (46938645).

Almost surely, 2242104541 is an apocalyptic number.

It is an amenable number.

242104541 is a deficient number, since it is larger than the sum of its proper divisors (39527329).

242104541 is an equidigital number, since it uses as much as digits as its factorization.

242104541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4940923 (or 4940916 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 242104541 is about 15559.7088983053. The cubic root of 242104541 is about 623.2576891312.

Adding to 242104541 its reverse (145401242), we get a palindrome (387505783).

The spelling of 242104541 in words is "two hundred forty-two million, one hundred four thousand, five hundred forty-one".

Divisors: 1 7 49 4940909 34586363 242104541