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201442342 = 2128978139
BaseRepresentation
bin11000000000111…
…00010000100110
3112001001022221111
430000130100212
5403032123332
631553335234
74664142313
oct1400342046
9461038844
10201442342
11a3788682
125756751a
133297096a
141ca79d0a
1512a41947
hexc01c426

201442342 has 8 divisors (see below), whose sum is σ = 302401800. Its totient is φ = 100641744.

The previous prime is 201442331. The next prime is 201442361. The reversal of 201442342 is 243244102.

It is a happy number.

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, 36492 + ... + 41647.

It is an arithmetic number, because the mean of its divisors is an integer number (37800225).

Almost surely, 2201442342 is an apocalyptic number.

201442342 is a deficient number, since it is larger than the sum of its proper divisors (100959458).

201442342 is a wasteful number, since it uses less digits than its factorization.

201442342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79430.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 201442342 is about 14193.0385048445. The cubic root of 201442342 is about 586.2059928808.

Adding to 201442342 its reverse (243244102), we get a palindrome (444686444).

The spelling of 201442342 in words is "two hundred one million, four hundred forty-two thousand, three hundred forty-two".

Divisors: 1 2 1289 2578 78139 156278 100721171 201442342