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50000005 = 511909091
BaseRepresentation
bin1011111010111…
…1000010000101
310111002021010001
42332233002011
5100300000010
64543401301
71144664416
oct276570205
9114067101
1050000005
1126250820
12148b3231
13a488403
1468d780d
1545c9c3a
hex2faf085

50000005 has 8 divisors (see below), whose sum is σ = 65454624. Its totient is φ = 36363600.

The previous prime is 49999991. The next prime is 50000017.

50000005 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 50000005 - 27 = 49999877 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 49999946 and 50000000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 454491 + ... + 454600.

It is an arithmetic number, because the mean of its divisors is an integer number (8181828).

Almost surely, 250000005 is an apocalyptic number.

50000005 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

50000005 is a deficient number, since it is larger than the sum of its proper divisors (15454619).

50000005 is a wasteful number, since it uses less digits than its factorization.

50000005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909107.

The product of its (nonzero) digits is 25, while the sum is 10.

The square root of 50000005 is about 7071.0681654189. The cubic root of 50000005 is about 368.4031621441.

It can be divided in two parts, 5000000 and 5, that multiplied together give a square (25000000 = 50002).

The spelling of 50000005 in words is "fifty million, five", and thus it is an aban number and an uban number.

Divisors: 1 5 11 55 909091 4545455 10000001 50000005