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242130641 = 8927110039
BaseRepresentation
bin11100110111010…
…01111011010001
3121212121111210112
432123221323101
5443441140031
640005411105
76000035144
oct1633517321
9555544715
10242130641
11114749375
1269109a95
133b21888c
142422c05b
15163cc62b
hexe6e9ed1

242130641 has 8 divisors (see below), whose sum is σ = 245779200. Its totient is φ = 238502880.

The previous prime is 242130611. The next prime is 242130653. The reversal of 242130641 is 146031242.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-242130641 is a prime.

It is a super-2 number, since 2×2421306412 = 117254494622141762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242130611) 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 7 ways as a sum of consecutive naturals, for example, 19100 + ... + 29138.

It is an arithmetic number, because the mean of its divisors is an integer number (30722400).

Almost surely, 2242130641 is an apocalyptic number.

It is an amenable number.

242130641 is a deficient number, since it is larger than the sum of its proper divisors (3648559).

242130641 is a wasteful number, since it uses less digits than its factorization.

242130641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10399.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 242130641 is about 15560.5475803392. The cubic root of 242130641 is about 623.2800850228.

Adding to 242130641 its reverse (146031242), we get a palindrome (388161883).

The spelling of 242130641 in words is "two hundred forty-two million, one hundred thirty thousand, six hundred forty-one".

Divisors: 1 89 271 10039 24119 893471 2720569 242130641