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28002803005 = 5131391910909
BaseRepresentation
bin11010000101000110…
…001101110100111101
32200021120012210011001
4122011012031310331
5424322204144010
620510405130301
72010635620042
oct320506156475
980246183131
1028002803005
111096a941401
1255160b9991
13284368c828
1414d90bd1c9
15add61bc3a
hex68518dd3d

28002803005 has 16 divisors (see below), whose sum is σ = 33871622400. Its totient is φ = 22223522880.

The previous prime is 28002802991. The next prime is 28002803029. The reversal of 28002803005 is 50030820082.

It is a de Polignac number, because none of the positive numbers 2k-28002803005 is a prime.

It is a super-2 number, since 2×280028030052 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2561491 + ... + 2572399.

It is an arithmetic number, because the mean of its divisors is an integer number (2116976400).

Almost surely, 228002803005 is an apocalyptic number.

It is an amenable number.

28002803005 is a deficient number, since it is larger than the sum of its proper divisors (5868819395).

28002803005 is a wasteful number, since it uses less digits than its factorization.

28002803005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14964.

The product of its (nonzero) digits is 3840, while the sum is 28.

The spelling of 28002803005 in words is "twenty-eight billion, two million, eight hundred three thousand, five".

Divisors: 1 5 131 655 3919 10909 19595 54545 513389 1429079 2566945 7145395 42752371 213761855 5600560601 28002803005