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104727943 = 195511997
BaseRepresentation
bin1100011111000…
…00010110000111
321022001201201201
412033200112013
5203302243233
614220403331
72411113165
oct617402607
9238051651
10104727943
1154130721
122b0a6547
131890a7c8
14dca2235
1592da77d
hex63e0587

104727943 has 4 divisors (see below), whose sum is σ = 110239960. Its totient is φ = 99215928.

The previous prime is 104727941. The next prime is 104727979. The reversal of 104727943 is 349727401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 349727401 = 187012.

It is a cyclic number.

It is not a de Polignac number, because 104727943 - 21 = 104727941 is a prime.

It is a super-2 number, since 2×1047279432 = 21935884090022498, which contains 22 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 (104727941) 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, 2755980 + ... + 2756017.

It is an arithmetic number, because the mean of its divisors is an integer number (27559990).

Almost surely, 2104727943 is an apocalyptic number.

104727943 is a deficient number, since it is larger than the sum of its proper divisors (5512017).

104727943 is an equidigital number, since it uses as much as digits as its factorization.

104727943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5512016.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 104727943 is about 10233.6671335353. The cubic root of 104727943 is about 471.3615911180.

The spelling of 104727943 in words is "one hundred four million, seven hundred twenty-seven thousand, nine hundred forty-three".

Divisors: 1 19 5511997 104727943