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104779471 = 195514709
BaseRepresentation
bin1100011111011…
…00111011001111
321022011100102011
412033230323033
5203310420341
614221442051
72411416336
oct617547317
9238140364
10104779471
1154166405
122b110327
13189280b4
14dcb6d1d
1592eab81
hex63ececf

104779471 has 4 divisors (see below), whose sum is σ = 110294200. Its totient is φ = 99264744.

The previous prime is 104779469. The next prime is 104779481. The reversal of 104779471 is 174977401.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 174977401 = 672611603.

It is a cyclic number.

It is not a de Polignac number, because 104779471 - 21 = 104779469 is a prime.

It is a super-3 number, since 3×1047794713 (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104779481) 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, 2757336 + ... + 2757373.

It is an arithmetic number, because the mean of its divisors is an integer number (27573550).

Almost surely, 2104779471 is an apocalyptic number.

104779471 is a deficient number, since it is larger than the sum of its proper divisors (5514729).

104779471 is an equidigital number, since it uses as much as digits as its factorization.

104779471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5514728.

The product of its (nonzero) digits is 49392, while the sum is 40.

The square root of 104779471 is about 10236.1843965415. The cubic root of 104779471 is about 471.4388845223.

The spelling of 104779471 in words is "one hundred four million, seven hundred seventy-nine thousand, four hundred seventy-one".

Divisors: 1 19 5514709 104779471