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50858881 = 734331609
BaseRepresentation
bin1100001000000…
…0101110000001
310112200220021021
43002000232001
5101004441011
65014025441
71155202423
oct302005601
9115626237
1050858881
1126788037
1215048281
13a6c9318
146a7c813
1546e9471
hex3080b81

50858881 has 8 divisors (see below), whose sum is σ = 51706760. Its totient is φ = 50015232.

The previous prime is 50858867. The next prime is 50858887. The reversal of 50858881 is 18885805.

It can be written as a sum of positive squares in 4 ways, for example, as 12666481 + 38192400 = 3559^2 + 6180^2 .

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 50858881 - 223 = 42470273 is a prime.

It is a super-2 number, since 2×508588812 = 5173251553144322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50858887) 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, 30805 + ... + 32413.

It is an arithmetic number, because the mean of its divisors is an integer number (6463345).

Almost surely, 250858881 is an apocalyptic number.

It is an amenable number.

50858881 is a deficient number, since it is larger than the sum of its proper divisors (847879).

50858881 is a wasteful number, since it uses less digits than its factorization.

50858881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2115.

The product of its (nonzero) digits is 102400, while the sum is 43.

The square root of 50858881 is about 7131.5412780128. The cubic root of 50858881 is about 370.5006152695.

The spelling of 50858881 in words is "fifty million, eight hundred fifty-eight thousand, eight hundred eighty-one".

Divisors: 1 73 433 1609 31609 117457 696697 50858881