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210351212053 = 1723633523573
BaseRepresentation
bin1100001111100111101…
…0001100011000010101
3202002221201220201222121
43003321322030120111
511421244402241203
6240344540255541
721124461541543
oct3037172143025
9662851821877
10210351212053
1181233859004
12349262415b1
1316ab39c8418
14a276b48d93
1557120aa0bd
hex30f9e8c615

210351212053 has 8 divisors (see below), whose sum is σ = 222734662488. Its totient is φ = 197968856064.

The previous prime is 210351212021. The next prime is 210351212083. The reversal of 210351212053 is 350212153012.

210351212053 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 72206676369 + 138144535684 = 268713^2 + 371678^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 210351212053 - 25 = 210351212021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210351212003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139975 + ... + 663547.

It is an arithmetic number, because the mean of its divisors is an integer number (27841832811).

Almost surely, 2210351212053 is an apocalyptic number.

It is an amenable number.

210351212053 is a deficient number, since it is larger than the sum of its proper divisors (12383450435).

210351212053 is a wasteful number, since it uses less digits than its factorization.

210351212053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547223.

The product of its (nonzero) digits is 1800, while the sum is 25.

Adding to 210351212053 its reverse (350212153012), we get a palindrome (560563365065).

The spelling of 210351212053 in words is "two hundred ten billion, three hundred fifty-one million, two hundred twelve thousand, fifty-three".

Divisors: 1 17 23633 401761 523573 8900741 12373600709 210351212053