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2550905842 = 21669976379
BaseRepresentation
bin1001100000001011…
…1011101111110010
320120202222102222011
42120002323233302
520211012441332
61101042433134
7120133225162
oct23002735762
96522872864
102550905842
111099a13351
125b23627aa
13318643c54
141a2b025a2
15ede33e47
hex980bbbf2

2550905842 has 8 divisors (see below), whose sum is σ = 3826638000. Its totient is φ = 1275359844.

The previous prime is 2550905831. The next prime is 2550905843. The reversal of 2550905842 is 2485090552.

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

It is a super-2 number, since 2×25509058422 = 13014241229499457928, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2550905795 and 2550905804.

It is not an unprimeable number, because it can be changed into a prime (2550905843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4792 + ... + 71587.

It is an arithmetic number, because the mean of its divisors is an integer number (478329750).

Almost surely, 22550905842 is an apocalyptic number.

2550905842 is a deficient number, since it is larger than the sum of its proper divisors (1275732158).

2550905842 is a wasteful number, since it uses less digits than its factorization.

2550905842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93080.

The product of its (nonzero) digits is 144000, while the sum is 40.

The square root of 2550905842 is about 50506.4930677235. The cubic root of 2550905842 is about 1366.3589612891.

The spelling of 2550905842 in words is "two billion, five hundred fifty million, nine hundred five thousand, eight hundred forty-two".

Divisors: 1 2 16699 33398 76379 152758 1275452921 2550905842