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210122023 = 1729426211
BaseRepresentation
bin11001000011000…
…11010100100111
3112122101022020011
430201203110213
5412242401043
632503351051
75131002436
oct1441432447
9478338204
10210122023
11a8676871
125a452487
13346bc577
141dc9911d
15136a859d
hexc863527

210122023 has 8 divisors (see below), whose sum is σ = 230154480. Its totient is φ = 190942080.

The previous prime is 210122021. The next prime is 210122039. The reversal of 210122023 is 320221012.

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 210122023 - 21 = 210122021 is a prime.

It is a super-2 number, since 2×2101220232 = 88302529099225058, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210121994 and 210122012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210122021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212613 + ... + 213598.

It is an arithmetic number, because the mean of its divisors is an integer number (28769310).

Almost surely, 2210122023 is an apocalyptic number.

210122023 is a deficient number, since it is larger than the sum of its proper divisors (20032457).

210122023 is a wasteful number, since it uses less digits than its factorization.

210122023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426257.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 210122023 is about 14495.5863282587. The cubic root of 210122023 is about 594.5072992054.

Adding to 210122023 its reverse (320221012), we get a palindrome (530343035).

The spelling of 210122023 in words is "two hundred ten million, one hundred twenty-two thousand, twenty-three".

Divisors: 1 17 29 493 426211 7245587 12360119 210122023