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104742761 = 142373607
BaseRepresentation
bin1100011111000…
…11111101101001
321022002111001112
412033203331221
5203303232021
614221000105
72411204324
oct617437551
9238074045
10104742761
1154140872
122b0b3035
1318914486
14dca77bb
1592ded5b
hex63e3f69

104742761 has 4 divisors (see below), whose sum is σ = 104817792. Its totient is φ = 104667732.

The previous prime is 104742749. The next prime is 104742767. The reversal of 104742761 is 167247401.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-104742761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104742767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35381 + ... + 38226.

It is an arithmetic number, because the mean of its divisors is an integer number (26204448).

Almost surely, 2104742761 is an apocalyptic number.

It is an amenable number.

104742761 is a deficient number, since it is larger than the sum of its proper divisors (75031).

104742761 is an equidigital number, since it uses as much as digits as its factorization.

104742761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75030.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 104742761 is about 10234.3910908270. The cubic root of 104742761 is about 471.3838211184.

The spelling of 104742761 in words is "one hundred four million, seven hundred forty-two thousand, seven hundred sixty-one".

Divisors: 1 1423 73607 104742761