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21348119 = 133152973
BaseRepresentation
bin101000101101…
…1111100010111
31111011121010002
41101123330113
520431114434
62041321515
7346312262
oct121337427
944147102
1021348119
1111061181
12719629b
134565c30
142b99cd9
151d1a57e
hex145bf17

21348119 has 8 divisors (see below), whose sum is σ = 23732352. Its totient is φ = 19069920.

The previous prime is 21348101. The next prime is 21348127. The reversal of 21348119 is 91184312.

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 21348119 - 28 = 21347863 is a prime.

It is a super-2 number, since 2×213481192 = 911484369676322, 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 = 21348091 and 21348100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21342119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26084 + ... + 26889.

It is an arithmetic number, because the mean of its divisors is an integer number (2966544).

Almost surely, 221348119 is an apocalyptic number.

21348119 is a deficient number, since it is larger than the sum of its proper divisors (2384233).

21348119 is a wasteful number, since it uses less digits than its factorization.

21348119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53017.

The product of its digits is 1728, while the sum is 29.

The square root of 21348119 is about 4620.4024716468. The cubic root of 21348119 is about 277.4085687475.

The spelling of 21348119 in words is "twenty-one million, three hundred forty-eight thousand, one hundred nineteen".

Divisors: 1 13 31 403 52973 688649 1642163 21348119