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50050091 = 7131732353
BaseRepresentation
bin1011111011101…
…1010000101011
310111011210211002
42332323100223
5100303100331
64544425215
71145263430
oct276732053
9114153732
1050050091
1126285413
121491820b
13a4a5150
14690bb87
1545d99cb
hex2fbb42b

50050091 has 16 divisors (see below), whose sum is σ = 65225664. Its totient is φ = 37269504.

The previous prime is 50050081. The next prime is 50050097. The reversal of 50050091 is 19005005.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-50050091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (50050097) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14630 + ... + 17723.

It is an arithmetic number, because the mean of its divisors is an integer number (4076604).

Almost surely, 250050091 is an apocalyptic number.

50050091 is a deficient number, since it is larger than the sum of its proper divisors (15175573).

50050091 is a wasteful number, since it uses less digits than its factorization.

50050091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32390.

The product of its (nonzero) digits is 225, while the sum is 20.

The square root of 50050091 is about 7074.6088937835. The cubic root of 50050091 is about 368.5261333519.

Adding to 50050091 its reverse (19005005), we get a palindrome (69055096).

The spelling of 50050091 in words is "fifty million, fifty thousand, ninety-one".

Divisors: 1 7 13 17 91 119 221 1547 32353 226471 420589 550001 2944123 3850007 7150013 50050091