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24222001 = 139174259
BaseRepresentation
bin101110001100…
…1100100110001
31200120121100011
41130121210301
522200101001
62223054521
7412612036
oct134314461
950517304
1024222001
1112744391
128141441
13503105b
14330738d
1521d6d51
hex1719931

24222001 has 4 divisors (see below), whose sum is σ = 24396400. Its totient is φ = 24047604.

The previous prime is 24221983. The next prime is 24222019. The reversal of 24222001 is 10022242.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10022242 = 25011121.

It is an interprime number because it is at equal distance from previous prime (24221983) and next prime (24222019).

It is a cyclic number.

It is not a de Polignac number, because 24222001 - 25 = 24221969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (24222091) 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, 86991 + ... + 87268.

It is an arithmetic number, because the mean of its divisors is an integer number (6099100).

Almost surely, 224222001 is an apocalyptic number.

It is an amenable number.

24222001 is a deficient number, since it is larger than the sum of its proper divisors (174399).

24222001 is a wasteful number, since it uses less digits than its factorization.

24222001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174398.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 24222001 is about 4921.5852121039. The cubic root of 24222001 is about 289.3365770069.

Adding to 24222001 its reverse (10022242), we get a palindrome (34244243).

The spelling of 24222001 in words is "twenty-four million, two hundred twenty-two thousand, one".

Divisors: 1 139 174259 24222001