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104420131 = 397263023
BaseRepresentation
bin1100011100101…
…01001100100011
321021111002111021
412032111030203
5203212421011
614210030311
72405361604
oct616251443
9237432437
10104420131
1153a40432
122ab78397
131883067a
14dc21dab
159279471
hex6395323

104420131 has 4 divisors (see below), whose sum is σ = 104683552. Its totient is φ = 104156712.

The previous prime is 104420111. The next prime is 104420177. The reversal of 104420131 is 131024401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131024401 = 612147941.

It is a cyclic number.

It is not a de Polignac number, because 104420131 - 219 = 103895843 is a prime.

It is a super-2 number, since 2×1044201312 = 21807127516114322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104420111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131115 + ... + 131908.

It is an arithmetic number, because the mean of its divisors is an integer number (26170888).

Almost surely, 2104420131 is an apocalyptic number.

104420131 is a deficient number, since it is larger than the sum of its proper divisors (263421).

104420131 is an equidigital number, since it uses as much as digits as its factorization.

104420131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263420.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 104420131 is about 10218.6168829250. The cubic root of 104420131 is about 470.8993358347.

Adding to 104420131 its reverse (131024401), we get a palindrome (235444532).

The spelling of 104420131 in words is "one hundred four million, four hundred twenty thousand, one hundred thirty-one".

Divisors: 1 397 263023 104420131