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10021203223 = 22674420469
BaseRepresentation
bin10010101010100111…
…10110110100010111
3221212101122212110221
421111103312310113
5131010412000343
64334221055211
7503222551633
oct112523666427
927771585427
1010021203223
114282787339
121b380b7507
13c39202465
146b0cc1dc3
153d9b9a5ed
hex2554f6d17

10021203223 has 4 divisors (see below), whose sum is σ = 10025625960. Its totient is φ = 10016780488.

The previous prime is 10021203131. The next prime is 10021203229. The reversal of 10021203223 is 32230212001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32230212001 = 132479247077.

It is a cyclic number.

It is not a de Polignac number, because 10021203223 - 217 = 10021072151 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10021203197 and 10021203206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021203229) 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 3 ways as a sum of consecutive naturals, for example, 2207968 + ... + 2212501.

It is an arithmetic number, because the mean of its divisors is an integer number (2506406490).

Almost surely, 210021203223 is an apocalyptic number.

10021203223 is a deficient number, since it is larger than the sum of its proper divisors (4422737).

10021203223 is an equidigital number, since it uses as much as digits as its factorization.

10021203223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4422736.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 10021203223 its reverse (32230212001), we get a palindrome (42251415224).

The spelling of 10021203223 in words is "ten billion, twenty-one million, two hundred three thousand, two hundred twenty-three".

Divisors: 1 2267 4420469 10021203223