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104143215 = 3511631171
BaseRepresentation
bin1100011010100…
…01100101101111
321020222000122010
412031101211233
5203130040330
614200052303
72403126351
oct615214557
9236860563
10104143215
1153871380
122aa64093
1318764607
14db8d0d1
1592223b0
hex635196f

104143215 has 16 divisors (see below), whose sum is σ = 181777536. Its totient is φ = 50493600.

The previous prime is 104143159. The next prime is 104143217. The reversal of 104143215 is 512341401.

It is not a de Polignac number, because 104143215 - 27 = 104143087 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 104143191 and 104143200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104143217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 315421 + ... + 315750.

It is an arithmetic number, because the mean of its divisors is an integer number (11361096).

Almost surely, 2104143215 is an apocalyptic number.

104143215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

104143215 is a deficient number, since it is larger than the sum of its proper divisors (77634321).

104143215 is a wasteful number, since it uses less digits than its factorization.

104143215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631190.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 104143215 is about 10205.0583045860. The cubic root of 104143215 is about 470.4827016091.

Adding to 104143215 its reverse (512341401), we get a palindrome (616484616).

The spelling of 104143215 in words is "one hundred four million, one hundred forty-three thousand, two hundred fifteen".

Divisors: 1 3 5 11 15 33 55 165 631171 1893513 3155855 6942881 9467565 20828643 34714405 104143215