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28370018312 = 235960105971
BaseRepresentation
bin11010011010111111…
…000010000000001000
32201020011012020211222
4122122333002000020
5431100211041222
621011043541212
72023015114436
oct323277020010
981204166758
1028370018312
1111039154729
1255b908a808
1328a17927ac
141531b8bd56
15b109a6542
hex69afc2008

28370018312 has 16 divisors (see below), whose sum is σ = 54095374800. Its totient is φ = 13944585040.

The previous prime is 28370018309. The next prime is 28370018407. The reversal of 28370018312 is 21381007382.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30052514 + ... + 30053457.

It is an arithmetic number, because the mean of its divisors is an integer number (3380960925).

Almost surely, 228370018312 is an apocalyptic number.

It is an amenable number.

28370018312 is a deficient number, since it is larger than the sum of its proper divisors (25725356488).

28370018312 is a wasteful number, since it uses less digits than its factorization.

28370018312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60106036 (or 60106032 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The spelling of 28370018312 in words is "twenty-eight billion, three hundred seventy million, eighteen thousand, three hundred twelve".

Divisors: 1 2 4 8 59 118 236 472 60105971 120211942 240423884 480847768 3546252289 7092504578 14185009156 28370018312