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210234941 = 725380953
BaseRepresentation
bin11001000011111…
…10111000111101
3112122121001010022
430201332320331
5412310004231
632510021525
75131652600
oct1441767075
9478531108
10210234941
11a8743694
125a4a78a5
133472ba97
141dcc8337
15136cbc7b
hexc87ee3d

210234941 has 12 divisors (see below), whose sum is σ = 249176412. Its totient is φ = 176799168.

The previous prime is 210234931. The next prime is 210234989. The reversal of 210234941 is 149432012.

It can be written as a sum of positive squares in 2 ways, for example, as 96727225 + 113507716 = 9835^2 + 10654^2 .

It is a de Polignac number, because none of the positive numbers 2k-210234941 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 210234941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210234931) 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 11 ways as a sum of consecutive naturals, for example, 37880 + ... + 43073.

It is an arithmetic number, because the mean of its divisors is an integer number (20764701).

Almost surely, 2210234941 is an apocalyptic number.

It is an amenable number.

210234941 is a deficient number, since it is larger than the sum of its proper divisors (38941471).

210234941 is an equidigital number, since it uses as much as digits as its factorization.

210234941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81020 (or 81013 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 210234941 is about 14499.4807148394. The cubic root of 210234941 is about 594.6137747233.

Adding to 210234941 its reverse (149432012), we get a palindrome (359666953).

The spelling of 210234941 in words is "two hundred ten million, two hundred thirty-four thousand, nine hundred forty-one".

Divisors: 1 7 49 53 371 2597 80953 566671 3966697 4290509 30033563 210234941