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28529073057 = 3107704312619
BaseRepresentation
bin11010100100011101…
…110001101110100001
32201122020111001221110
4122210131301232201
5431411420314212
621034525013533
72026656056052
oct324435615641
981566431843
1028529073057
111110aa10931
1256423b42a9
1328c8711c24
141548d52729
15b1e923a3c
hex6a4771ba1

28529073057 has 16 divisors (see below), whose sum is σ = 38402760960. Its totient is φ = 18837462672.

The previous prime is 28529073029. The next prime is 28529073119. The reversal of 28529073057 is 75037092582.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2k-28529073057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28529072997 and 28529073015.

It is not an unprimeable number, because it can be changed into a prime (28529053057) 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, 2254494 + ... + 2267112.

It is an arithmetic number, because the mean of its divisors is an integer number (2400172560).

Almost surely, 228529073057 is an apocalyptic number.

It is an amenable number.

28529073057 is a deficient number, since it is larger than the sum of its proper divisors (9873687903).

28529073057 is a wasteful number, since it uses less digits than its factorization.

28529073057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19772.

The product of its (nonzero) digits is 1058400, while the sum is 48.

The spelling of 28529073057 in words is "twenty-eight billion, five hundred twenty-nine million, seventy-three thousand, fifty-seven".

Divisors: 1 3 107 321 7043 12619 21129 37857 753601 1350233 2260803 4050699 88875617 266626851 9509691019 28529073057