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28316462845 = 51117103294029
BaseRepresentation
bin11010010111110010…
…101110111011111101
32201002102102100120011
4122113302232323331
5430443003302340
621001452023221
72021464651156
oct322762567375
981072370504
1028316462845
11110109a5710
1255a3161b11
132893660c78
141528a0a92d
15b0ae280ea
hex697caeefd

28316462845 has 32 divisors (see below), whose sum is σ = 39630539520. Its totient is φ = 19194147840.

The previous prime is 28316462833. The next prime is 28316462887. The reversal of 28316462845 is 54826461382.

It is not a de Polignac number, because 28316462845 - 217 = 28316331773 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50710 + ... + 243319.

It is an arithmetic number, because the mean of its divisors is an integer number (1238454360).

Almost surely, 228316462845 is an apocalyptic number.

It is an amenable number.

28316462845 is a deficient number, since it is larger than the sum of its proper divisors (11314076675).

28316462845 is a wasteful number, since it uses less digits than its factorization.

28316462845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294165.

The product of its digits is 2211840, while the sum is 49.

The spelling of 28316462845 in words is "twenty-eight billion, three hundred sixteen million, four hundred sixty-two thousand, eight hundred forty-five".

Divisors: 1 5 11 17 55 85 103 187 515 935 1133 1751 5665 8755 19261 96305 294029 1470145 3234319 4998493 16171595 24992465 30284987 54983423 151424935 274917115 333134857 514844779 1665674285 2574223895 5663292569 28316462845