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80105127 = 326701709
BaseRepresentation
bin1001100011001…
…00111010100111
312120201202120120
410301210322213
5131001331002
611540533023
71661611434
oct461447247
9176652516
1080105127
1141243193
12229b1173
13137991ab
14a8d2b8b
157074cbc
hex4c64ea7

80105127 has 4 divisors (see below), whose sum is σ = 106806840. Its totient is φ = 53403416.

The previous prime is 80105119. The next prime is 80105153. The reversal of 80105127 is 72150108.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 80105127 - 23 = 80105119 is a prime.

It is a super-2 number, since 2×801051272 = 12833662743372258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 80105097 and 80105106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80105117) 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, 13350852 + ... + 13350857.

It is an arithmetic number, because the mean of its divisors is an integer number (26701710).

Almost surely, 280105127 is an apocalyptic number.

80105127 is a deficient number, since it is larger than the sum of its proper divisors (26701713).

80105127 is a wasteful number, since it uses less digits than its factorization.

80105127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26701712.

The product of its (nonzero) digits is 560, while the sum is 24.

The square root of 80105127 is about 8950.1467585733. The cubic root of 80105127 is about 431.0755964390.

The spelling of 80105127 in words is "eighty million, one hundred five thousand, one hundred twenty-seven".

Divisors: 1 3 26701709 80105127