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103042312221 = 3891026737589
BaseRepresentation
bin101111111110111001…
…1001110100000011101
3100211222012021211001010
41133331303032200131
53142012312442341
6115200442205433
710305325126302
oct1377563164035
9324865254033
10103042312221
113a777776322
1217b787b3879
139941bba0a4
144db711d0a9
152a3138a716
hex17fdcce81d

103042312221 has 16 divisors (see below), whose sum is σ = 138950683200. Its totient is φ = 67914599808.

The previous prime is 103042312171. The next prime is 103042312223. The reversal of 103042312221 is 122213240301.

It is not a de Polignac number, because 103042312221 - 217 = 103042181149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103042312223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2722495 + ... + 2760083.

It is an arithmetic number, because the mean of its divisors is an integer number (8684417700).

Almost surely, 2103042312221 is an apocalyptic number.

It is an amenable number.

103042312221 is a deficient number, since it is larger than the sum of its proper divisors (35908370979).

103042312221 is a wasteful number, since it uses less digits than its factorization.

103042312221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47948.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 103042312221 its reverse (122213240301), we get a palindrome (225255552522).

The spelling of 103042312221 in words is "one hundred three billion, forty-two million, three hundred twelve thousand, two hundred twenty-one".

Divisors: 1 3 89 267 10267 30801 37589 112767 913763 2741289 3345421 10036263 385926263 1157778789 34347437407 103042312221