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20030194760 = 2351014957969
BaseRepresentation
bin10010101001111001…
…001000010001001000
31220200221100022200012
4102221321020101020
5312010212213020
613111324331052
71306236563162
oct225171102110
956627308605
1020030194760
118549582874
123a700a3a88
131b72a1a464
14d80305932
157c37327c5
hex4a9e48448

20030194760 has 32 divisors (see below), whose sum is σ = 45514164600. Its totient is φ = 7932748800.

The previous prime is 20030194753. The next prime is 20030194771. The reversal of 20030194760 is 6749103002.

It can be written as a sum of positive squares in 4 ways, for example, as 19800429796 + 229764964 = 140714^2 + 15158^2 .

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, 2474945 + ... + 2483024.

Almost surely, 220030194760 is an apocalyptic number.

20030194760 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20030194760 is an abundant number, since it is smaller than the sum of its proper divisors (25483969840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20030194760 is a wasteful number, since it uses less digits than its factorization.

20030194760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4958081 (or 4958077 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 32.

Adding to 20030194760 its reverse (6749103002), we get a palindrome (26779297762).

The spelling of 20030194760 in words is "twenty billion, thirty million, one hundred ninety-four thousand, seven hundred sixty".

Divisors: 1 2 4 5 8 10 20 40 101 202 404 505 808 1010 2020 4040 4957969 9915938 19831876 24789845 39663752 49579690 99159380 198318760 500754869 1001509738 2003019476 2503774345 4006038952 5007548690 10015097380 20030194760