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210202442003131 = 505394159212529
BaseRepresentation
bin101111110010110110010001…
…111000101111001010111011
31000120021011020121012121102121
4233302312101320233022323
5210022424100123100011
62023021400241142111
762163424316422564
oct5762662170571273
91016234217177377
10210202442003131
1160a8239a5a9676
121b6aa78462a937
13903a00b63a726
1439c9bd12a916b
151947caba27e71
hexbf2d91e2f2bb

210202442003131 has 4 divisors (see below), whose sum is σ = 210206601266200. Its totient is φ = 210198282740064.

The previous prime is 210202442003083. The next prime is 210202442003143. The reversal of 210202442003131 is 131300244202012.

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 210202442003131 - 237 = 210065003049659 is a prime.

It is a super-2 number, since 2×2102024420031312 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210202442003096 and 210202442003105.

It is not an unprimeable number, because it can be changed into a prime (210202442003171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2079555726 + ... + 2079656803.

It is an arithmetic number, because the mean of its divisors is an integer number (52551650316550).

Almost surely, 2210202442003131 is an apocalyptic number.

210202442003131 is a deficient number, since it is larger than the sum of its proper divisors (4159263069).

210202442003131 is an equidigital number, since it uses as much as digits as its factorization.

210202442003131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4159263068.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 210202442003131 its reverse (131300244202012), we get a palindrome (341502686205143).

The spelling of 210202442003131 in words is "two hundred ten trillion, two hundred two billion, four hundred forty-two million, three thousand, one hundred thirty-one".

Divisors: 1 50539 4159212529 210202442003131