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21341410 = 252134141
BaseRepresentation
bin101000101101…
…0010011100010
31111011020220121
41101122103202
520430411120
62041230454
7346253566
oct121322342
944136817
1021341410
1111057132
12719242a
134562b6c
142b976a6
151d185aa
hex145a4e2

21341410 has 8 divisors (see below), whose sum is σ = 38414556. Its totient is φ = 8536560.

The previous prime is 21341407. The next prime is 21341479. The reversal of 21341410 is 1414312.

It can be written as a sum of positive squares in 2 ways, for example, as 21261321 + 80089 = 4611^2 + 283^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1067061 + ... + 1067080.

Almost surely, 221341410 is an apocalyptic number.

21341410 is a deficient number, since it is larger than the sum of its proper divisors (17073146).

21341410 is a wasteful number, since it uses less digits than its factorization.

21341410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2134148.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 21341410 is about 4619.6763955931. The cubic root of 21341410 is about 277.3795056235.

Adding to 21341410 its reverse (1414312), we get a palindrome (22755722).

The spelling of 21341410 in words is "twenty-one million, three hundred forty-one thousand, four hundred ten".

Divisors: 1 2 5 10 2134141 4268282 10670705 21341410