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213241314442 = 21317347408029
BaseRepresentation
bin1100011010011000101…
…1000011110010001010
3202101102011011011010211
43012212023003302022
511443204234030232
6241543421231334
721256214160202
oct3064613036212
9671364134124
10213241314442
1182487187782
12353b210254a
13171546b2090
14a46c905402
155830b91a47
hex31a62c3c8a

213241314442 has 16 divisors (see below), whose sum is σ = 346457883240. Its totient is φ = 97850169792.

The previous prime is 213241314367. The next prime is 213241314469. The reversal of 213241314442 is 244413142312.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 117958589401 + 95282725041 = 343451^2 + 308679^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 23699517 + ... + 23708512.

Almost surely, 2213241314442 is an apocalyptic number.

213241314442 is a deficient number, since it is larger than the sum of its proper divisors (133216568798).

213241314442 is a wasteful number, since it uses less digits than its factorization.

213241314442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47408217.

The product of its digits is 18432, while the sum is 31.

Adding to 213241314442 its reverse (244413142312), we get a palindrome (457654456754).

The spelling of 213241314442 in words is "two hundred thirteen billion, two hundred forty-one million, three hundred fourteen thousand, four hundred forty-two".

Divisors: 1 2 13 26 173 346 2249 4498 47408029 94816058 616304377 1232608754 8201589017 16403178034 106620657221 213241314442