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2440242247 = 2383215401
BaseRepresentation
bin1001000101110011…
…0010010001000111
320022001202011001111
42101130302101013
514444200222442
61042050505451
7114320500612
oct22134622107
96261664044
102440242247
1110424a9133
12581295287
132cb738831
14192137179
15e4374b17
hex91732447

2440242247 has 12 divisors (see below), whose sum is σ = 2577555504. Its totient is φ = 2305872800.

The previous prime is 2440242199. The next prime is 2440242251. The reversal of 2440242247 is 7422420442.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2k-2440242247 is a prime.

It is a super-3 number, since 3×24402422473 (a number of 29 digits) contains 333 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 (2440242347) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 150747 + ... + 166147.

It is an arithmetic number, because the mean of its divisors is an integer number (214796292).

Almost surely, 22440242247 is an apocalyptic number.

2440242247 is a deficient number, since it is larger than the sum of its proper divisors (137313257).

2440242247 is an equidigital number, since it uses as much as digits as its factorization.

2440242247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15590 (or 15507 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 31.

The square root of 2440242247 is about 49398.8081536387. The cubic root of 2440242247 is about 1346.3076510111.

Adding to 2440242247 its reverse (7422420442), we get a palindrome (9862662689).

The spelling of 2440242247 in words is "two billion, four hundred forty million, two hundred forty-two thousand, two hundred forty-seven".

Divisors: 1 23 83 1909 6889 15401 158447 354223 1278283 29400509 106097489 2440242247