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21230062 = 271516433
BaseRepresentation
bin101000011111…
…1000111101110
31110221121011121
41100333013232
520413330222
62035011154
7345311140
oct120770756
943847147
1021230062
1110a90507
127139aba
134524289
142b68c90
151ce55c7
hex143f1ee

21230062 has 8 divisors (see below), whose sum is σ = 36394416. Its totient is φ = 9098592.

The previous prime is 21230047. The next prime is 21230123. The reversal of 21230062 is 26003212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 758203 + ... + 758230.

It is an arithmetic number, because the mean of its divisors is an integer number (4549302).

Almost surely, 221230062 is an apocalyptic number.

21230062 is a deficient number, since it is larger than the sum of its proper divisors (15164354).

21230062 is a wasteful number, since it uses less digits than its factorization.

21230062 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1516442.

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

The square root of 21230062 is about 4607.6091414095. The cubic root of 21230062 is about 276.8962585100.

Adding to 21230062 its reverse (26003212), we get a palindrome (47233274).

The spelling of 21230062 in words is "twenty-one million, two hundred thirty thousand, sixty-two".

Divisors: 1 2 7 14 1516433 3032866 10615031 21230062