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210223013 = 71113232397
BaseRepresentation
bin11001000011110…
…11111110100101
3112122120102202112
430201323332211
5412304114023
632505450405
75131603040
oct1441737645
9478512675
10210223013
11a8735730
125a4a0a05
1334726520
141dcc3c57
15136c8478
hexc87bfa5

210223013 has 48 divisors (see below), whose sum is σ = 295806336. Its totient is φ = 144270720.

The previous prime is 210223009. The next prime is 210223061. The reversal of 210223013 is 310322012.

It is a happy number.

It is not a de Polignac number, because 210223013 - 22 = 210223009 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210223213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 529331 + ... + 529727.

It is an arithmetic number, because the mean of its divisors is an integer number (6162632).

Almost surely, 2210223013 is an apocalyptic number.

210223013 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

210223013 is a deficient number, since it is larger than the sum of its proper divisors (85583323).

210223013 is a wasteful number, since it uses less digits than its factorization.

210223013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474 (or 451 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 210223013 is about 14499.0693839294. The cubic root of 210223013 is about 594.6025290708.

Adding to 210223013 its reverse (310322012), we get a palindrome (520545025).

The spelling of 210223013 in words is "two hundred ten million, two hundred twenty-three thousand, thirteen".

Divisors: 1 7 11 13 23 77 91 143 161 253 299 397 529 1001 1771 2093 2779 3289 3703 4367 5161 5819 6877 9131 23023 30569 36127 40733 48139 56771 63917 75647 100441 118703 210013 397397 529529 703087 830921 1305733 1470091 2310143 2730169 9140131 16171001 19111183 30031859 210223013