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104442142 = 2734721499
BaseRepresentation
bin1100011100110…
…10100100011110
321021112012200111
412032122210132
5203214122032
614210320234
72405513020
oct616324436
9237465614
10104442142
1153a55a22
122ab8907a
131883a6ac
14dc2a010
159280c47
hex639a91e

104442142 has 16 divisors (see below), whose sum is σ = 179568000. Its totient is φ = 44629848.

The previous prime is 104442139. The next prime is 104442161. The reversal of 104442142 is 241244401.

It is a super-2 number, since 2×1044421422 = 21816322051096328, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5892 + ... + 15607.

It is an arithmetic number, because the mean of its divisors is an integer number (11223000).

Almost surely, 2104442142 is an apocalyptic number.

104442142 is a deficient number, since it is larger than the sum of its proper divisors (75125858).

104442142 is a wasteful number, since it uses less digits than its factorization.

104442142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21855.

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 104442142 is about 10219.6938310304. The cubic root of 104442142 is about 470.9324208889.

Adding to 104442142 its reverse (241244401), we get a palindrome (345686543).

The spelling of 104442142 in words is "one hundred four million, four hundred forty-two thousand, one hundred forty-two".

Divisors: 1 2 7 14 347 694 2429 4858 21499 42998 150493 300986 7460153 14920306 52221071 104442142