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104451409 = 1313592221
BaseRepresentation
bin1100011100111…
…00110101010001
321021112200101201
412032130311101
5203214421114
614210431201
72405552026
oct616346521
9237480351
10104451409
1153a61987
122ab92501
131884198a
14dc2d54d
159283874
hex639cd51

104451409 has 8 divisors (see below), whose sum is σ = 105589440. Its totient is φ = 103318800.

The previous prime is 104451401. The next prime is 104451419. The reversal of 104451409 is 904154401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 104451409 - 23 = 104451401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104451401) 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, 45919 + ... + 48139.

It is an arithmetic number, because the mean of its divisors is an integer number (13198680).

Almost surely, 2104451409 is an apocalyptic number.

It is an amenable number.

104451409 is a deficient number, since it is larger than the sum of its proper divisors (1138031).

104451409 is a wasteful number, since it uses less digits than its factorization.

104451409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2711.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 104451409 is about 10220.1472102901. The cubic root of 104451409 is about 470.9463488608.

The spelling of 104451409 in words is "one hundred four million, four hundred fifty-one thousand, four hundred nine".

Divisors: 1 131 359 2221 47029 290951 797339 104451409