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240820801 = 1319974983
BaseRepresentation
bin11100101101010…
…10001001000001
3121210010222000221
432112222021001
5443122231201
635521343041
75652641314
oct1626521101
9553128027
10240820801
11113a34261
1268797a81
133ab7a620
1423daa97b
151621e4a1
hexe5aa241

240820801 has 8 divisors (see below), whose sum is σ = 272995520. Its totient is φ = 210596112.

The previous prime is 240820799. The next prime is 240820823. The reversal of 240820801 is 108028042.

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

It is a cyclic number.

It is not a de Polignac number, because 240820801 - 21 = 240820799 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240820201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 487245 + ... + 487738.

It is an arithmetic number, because the mean of its divisors is an integer number (34124440).

Almost surely, 2240820801 is an apocalyptic number.

It is an amenable number.

240820801 is a deficient number, since it is larger than the sum of its proper divisors (32174719).

240820801 is a wasteful number, since it uses less digits than its factorization.

240820801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975015.

The product of its (nonzero) digits is 1024, while the sum is 25.

The square root of 240820801 is about 15518.4020118052. The cubic root of 240820801 is about 622.1541449624.

Adding to 240820801 its reverse (108028042), we get a palindrome (348848843).

The spelling of 240820801 in words is "two hundred forty million, eight hundred twenty thousand, eight hundred one".

Divisors: 1 13 19 247 974983 12674779 18524677 240820801