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50712005 = 573138937
BaseRepresentation
bin1100000101110…
…0110111000101
310112102102210102
43001130313011
5100440241010
65010533445
71154021261
oct301346705
9115372712
1050712005
1126697753
1214b97285
13a677506
146a410a1
1546baba5
hex305cdc5

50712005 has 8 divisors (see below), whose sum is σ = 61688472. Its totient is φ = 40013568.

The previous prime is 50711993. The next prime is 50712017. The reversal of 50712005 is 50021705.

50712005 = T334 + T335 + ... + T698.

50712005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (50711993) and next prime (50712017).

It can be written as a sum of positive squares in 4 ways, for example, as 18653761 + 32058244 = 4319^2 + 5662^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 50712005 - 214 = 50695621 is a prime.

It is a super-2 number, since 2×507120052 = 5143414902240050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 69104 + ... + 69833.

It is an arithmetic number, because the mean of its divisors is an integer number (7711059).

Almost surely, 250712005 is an apocalyptic number.

It is an amenable number.

50712005 is a deficient number, since it is larger than the sum of its proper divisors (10976467).

50712005 is a wasteful number, since it uses less digits than its factorization.

50712005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139015.

The product of its (nonzero) digits is 350, while the sum is 20.

The square root of 50712005 is about 7121.2361988632. The cubic root of 50712005 is about 370.1436135949.

The spelling of 50712005 in words is "fifty million, seven hundred twelve thousand, five".

Divisors: 1 5 73 365 138937 694685 10142401 50712005