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104146477 = 127820051
BaseRepresentation
bin1100011010100…
…10011000101101
321020222012002221
412031102120231
5203130141402
614200115341
72403142021
oct615223055
9236865087
10104146477
1153873876
122aa65b51
1318765c46
14db90381
159223337
hex635262d

104146477 has 4 divisors (see below), whose sum is σ = 104966656. Its totient is φ = 103326300.

The previous prime is 104146447. The next prime is 104146481. The reversal of 104146477 is 774641401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 774641401 = 4391764559.

It is a cyclic number.

It is not a de Polignac number, because 104146477 - 27 = 104146349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104146447) 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, 409899 + ... + 410152.

It is an arithmetic number, because the mean of its divisors is an integer number (26241664).

Almost surely, 2104146477 is an apocalyptic number.

It is an amenable number.

104146477 is a deficient number, since it is larger than the sum of its proper divisors (820179).

104146477 is an equidigital number, since it uses as much as digits as its factorization.

104146477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 820178.

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 104146477 is about 10205.2181260373. The cubic root of 104146477 is about 470.4876137503.

Adding to 104146477 its reverse (774641401), we get a palindrome (878787878).

The spelling of 104146477 in words is "one hundred four million, one hundred forty-six thousand, four hundred seventy-seven".

Divisors: 1 127 820051 104146477