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104130442 = 21329313669
BaseRepresentation
bin1100011010011…
…10011110001010
321020221101010001
412031032132022
5203124133232
614155513214
72403044203
oct615163612
9236841101
10104130442
1153862819
122aa5880a
131875b860
14db885aa
15921d6e7
hex634e78a

104130442 has 16 divisors (see below), whose sum is σ = 168797160. Its totient is φ = 47892672.

The previous prime is 104130437. The next prime is 104130449. The reversal of 104130442 is 244031401.

It can be written as a sum of positive squares in 4 ways, for example, as 100821681 + 3308761 = 10041^2 + 1819^2 .

It is a super-2 number, since 2×1041304422 = 21686297902230728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (104130449) 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, 784 + ... + 14452.

Almost surely, 2104130442 is an apocalyptic number.

104130442 is a deficient number, since it is larger than the sum of its proper divisors (64666718).

104130442 is a wasteful number, since it uses less digits than its factorization.

104130442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13977.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 104130442 is about 10204.4324682953. The cubic root of 104130442 is about 470.4634661705.

Adding to 104130442 its reverse (244031401), we get a palindrome (348161843).

The spelling of 104130442 in words is "one hundred four million, one hundred thirty thousand, four hundred forty-two".

Divisors: 1 2 13 26 293 586 3809 7618 13669 27338 177697 355394 4005017 8010034 52065221 104130442