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2252105149 = 7321729307
BaseRepresentation
bin1000011000111100…
…0110010110111101
312210221201210110211
42012033012112331
514103014331044
61011250232421
7106544402140
oct20617062675
95727653424
102252105149
11a56288a28
1252a285711
1329b775cc8
14175162057
15d2ab0634
hex863c65bd

2252105149 has 4 divisors (see below), whose sum is σ = 2573834464. Its totient is φ = 1930375836.

The previous prime is 2252105137. The next prime is 2252105179. The reversal of 2252105149 is 9415012522.

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.

It is a cyclic number.

It is not a de Polignac number, because 2252105149 - 27 = 2252105021 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2252105149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2252105179) 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 3 ways as a sum of consecutive naturals, for example, 160864647 + ... + 160864660.

It is an arithmetic number, because the mean of its divisors is an integer number (643458616).

Almost surely, 22252105149 is an apocalyptic number.

It is an amenable number.

2252105149 is a deficient number, since it is larger than the sum of its proper divisors (321729315).

2252105149 is an equidigital number, since it uses as much as digits as its factorization.

2252105149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321729314.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 2252105149 is about 47456.3499333862. The cubic root of 2252105149 is about 1310.7792401707.

The spelling of 2252105149 in words is "two billion, two hundred fifty-two million, one hundred five thousand, one hundred forty-nine".

Divisors: 1 7 321729307 2252105149