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1028587305216 = 2831339306387
BaseRepresentation
bin11101111011111001001…
…01001011100100000000
310122022222000110222221010
432331330211023210000
5113323021322231331
62104305415400520
7134212231560132
oct16757445134400
93568860428833
101028587305216
1136724879a479
1214741b983140
1375cc2a88b63
1437ad8dd7052
151bb5133de46
hexef7c94b900

1028587305216 has 36 divisors (see below), whose sum is σ = 2737542257072. Its totient is φ = 342862434816.

The previous prime is 1028587305199. The next prime is 1028587305233. The reversal of 1028587305216 is 6125037858201.

1028587305216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1028587305199) and next prime (1028587305233).

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 669652426 + ... + 669653961.

Almost surely, 21028587305216 is an apocalyptic number.

1028587305216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1028587305216 is an abundant number, since it is smaller than the sum of its proper divisors (1708954951856).

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

1028587305216 is an equidigital number, since it uses as much as digits as its factorization.

1028587305216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1339306406 (or 1339306392 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 48.

The spelling of 1028587305216 in words is "one trillion, twenty-eight billion, five hundred eighty-seven million, three hundred five thousand, two hundred sixteen".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 128 192 256 384 768 1339306387 2678612774 4017919161 5357225548 8035838322 10714451096 16071676644 21428902192 32143353288 42857804384 64286706576 85715608768 128573413152 171431217536 257146826304 342862435072 514293652608 1028587305216