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50072705 = 529345329
BaseRepresentation
bin1011111100000…
…0110010000001
310111012221211122
42333000302001
5100304311310
64545122025
71145416364
oct277006201
9114187748
1050072705
11262a0401
1214929315
13a4b2527
1469160db
1545e1555
hex2fc0c81

50072705 has 8 divisors (see below), whose sum is σ = 62159400. Its totient is φ = 38676736.

The previous prime is 50072689. The next prime is 50072707. The reversal of 50072705 is 50727005.

It can be written as a sum of positive squares in 4 ways, for example, as 3519376 + 46553329 = 1876^2 + 6823^2 .

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 50072705 - 24 = 50072689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (50072707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172520 + ... + 172809.

It is an arithmetic number, because the mean of its divisors is an integer number (7769925).

Almost surely, 250072705 is an apocalyptic number.

It is an amenable number.

50072705 is a deficient number, since it is larger than the sum of its proper divisors (12086695).

50072705 is a wasteful number, since it uses less digits than its factorization.

50072705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345363.

The product of its (nonzero) digits is 2450, while the sum is 26.

The square root of 50072705 is about 7076.2069641864. The cubic root of 50072705 is about 368.5816283902.

The spelling of 50072705 in words is "fifty million, seventy-two thousand, seven hundred five".

Divisors: 1 5 29 145 345329 1726645 10014541 50072705