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210848013 = 3223427557
BaseRepresentation
bin11001001000101…
…00100100001101
3112200202012002200
430210110210031
5412434114023
632531112113
75140115145
oct1444244415
9480665080
10210848013
11a9022262
125a742639
13348b4b4c
1420007925
151379d743
hexc91490d

210848013 has 6 divisors (see below), whose sum is σ = 304558254. Its totient is φ = 140565336.

The previous prime is 210848003. The next prime is 210848023. The reversal of 210848013 is 310848012.

It is an interprime number because it is at equal distance from previous prime (210848003) and next prime (210848023).

It can be written as a sum of positive squares in only one way, i.e., 106440489 + 104407524 = 10317^2 + 10218^2 .

It is not a de Polignac number, because 210848013 - 25 = 210847981 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210848003) 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 5 ways as a sum of consecutive naturals, for example, 11713770 + ... + 11713787.

It is an arithmetic number, because the mean of its divisors is an integer number (50759709).

Almost surely, 2210848013 is an apocalyptic number.

It is an amenable number.

210848013 is a deficient number, since it is larger than the sum of its proper divisors (93710241).

210848013 is a wasteful number, since it uses less digits than its factorization.

210848013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23427563 (or 23427560 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 210848013 is about 14520.6064955979. The cubic root of 210848013 is about 595.1912037619.

Subtracting 210848013 from its reverse (310848012), we obtain a palindrome (99999999).

The spelling of 210848013 in words is "two hundred ten million, eight hundred forty-eight thousand, thirteen".

Divisors: 1 3 9 23427557 70282671 210848013