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2153130251 = 10597203183
BaseRepresentation
bin1000000001010110…
…0010100100001011
312120001111100102212
42000111202210023
513402200132001
6553353015335
7104233206446
oct20025424413
95501440385
102153130251
11a05427698
125010b454b
13284100c8c
14165d5a65d
15c905e7bb
hex8056290b

2153130251 has 4 divisors (see below), whose sum is σ = 2153344032. Its totient is φ = 2152916472.

The previous prime is 2153130229. The next prime is 2153130277. The reversal of 2153130251 is 1520313512.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2153130251 - 214 = 2153113867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2153130851) 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 3 ways as a sum of consecutive naturals, for example, 90995 + ... + 112188.

It is an arithmetic number, because the mean of its divisors is an integer number (538336008).

Almost surely, 22153130251 is an apocalyptic number.

2153130251 is a deficient number, since it is larger than the sum of its proper divisors (213781).

2153130251 is a wasteful number, since it uses less digits than its factorization.

2153130251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213780.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 2153130251 is about 46401.8345650256. The cubic root of 2153130251 is about 1291.2889488378.

Adding to 2153130251 its reverse (1520313512), we get a palindrome (3673443763).

It can be divided in two parts, 2153 and 130251, that multiplied together give a triangular number (280430403 = T23682).

The spelling of 2153130251 in words is "two billion, one hundred fifty-three million, one hundred thirty thousand, two hundred fifty-one".

Divisors: 1 10597 203183 2153130251