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104497081 = 138038237
BaseRepresentation
bin1100011101001…
…11111110111001
321021122000001021
412032213332321
5203222401311
614211422441
72406132133
oct616477671
9237560037
10104497081
1153a93227
122abb4a21
13188596c0
14dc42053
159292171
hex63a7fb9

104497081 has 4 divisors (see below), whose sum is σ = 112535332. Its totient is φ = 96458832.

The previous prime is 104497067. The next prime is 104497097. The reversal of 104497081 is 180794401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 180794401 = 199790533.

It can be written as a sum of positive squares in 2 ways, for example, as 9610000 + 94887081 = 3100^2 + 9741^2 .

It is a cyclic number.

It is not a de Polignac number, because 104497081 - 25 = 104497049 is a prime.

It is a super-2 number, since 2×1044970812 = 21839279875041122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (104497021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4019106 + ... + 4019131.

It is an arithmetic number, because the mean of its divisors is an integer number (28133833).

Almost surely, 2104497081 is an apocalyptic number.

It is an amenable number.

104497081 is a deficient number, since it is larger than the sum of its proper divisors (8038251).

104497081 is an equidigital number, since it uses as much as digits as its factorization.

104497081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8038250.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 104497081 is about 10222.3813761765. The cubic root of 104497081 is about 471.0149802229.

The spelling of 104497081 in words is "one hundred four million, four hundred ninety-seven thousand, eighty-one".

Divisors: 1 13 8038237 104497081