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2152145253 = 34159172489
BaseRepresentation
bin1000000001000111…
…0010000101100101
312112222122022021110
42000101302011211
513401422122003
6553315535233
7104221634646
oct20021620545
95488568243
102152145253
11a04914645
125008ba519
13283b4783b
14165b816cd
15c8e17a03
hex80472165

2152145253 has 8 divisors (see below), whose sum is σ = 2870233600. Its totient is φ = 1434410208.

The previous prime is 2152145221. The next prime is 2152145267. The reversal of 2152145253 is 3525412512.

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

It is not a de Polignac number, because 2152145253 - 25 = 2152145221 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 2152145253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2152145353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73768 + ... + 98721.

It is an arithmetic number, because the mean of its divisors is an integer number (358779200).

Almost surely, 22152145253 is an apocalyptic number.

It is an amenable number.

2152145253 is a deficient number, since it is larger than the sum of its proper divisors (718088347).

2152145253 is a wasteful number, since it uses less digits than its factorization.

2152145253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176651.

The product of its digits is 12000, while the sum is 30.

The square root of 2152145253 is about 46391.2195679312. The cubic root of 2152145253 is about 1291.0920090511.

Adding to 2152145253 its reverse (3525412512), we get a palindrome (5677557765).

The spelling of 2152145253 in words is "two billion, one hundred fifty-two million, one hundred forty-five thousand, two hundred fifty-three".

Divisors: 1 3 4159 12477 172489 517467 717381751 2152145253