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28596545081 = 1323616912269
BaseRepresentation
bin11010101000011111…
…001010011000111001
32201210221110000011022
4122220133022120321
5432031203420311
621045335112225
72031435423356
oct325037123071
981727400138
1028596545081
1111145005635
125660b12675
1329096a6bc0
141553cb762d
15b258005db
hex6a87ca639

28596545081 has 32 divisors (see below), whose sum is σ = 32723738880. Its totient is φ = 24788332800.

The previous prime is 28596545041. The next prime is 28596545083. The reversal of 28596545081 is 18054569582.

It is not a de Polignac number, because 28596545081 - 210 = 28596544057 is a prime.

It is a super-2 number, since 2×285965450812 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28596545083) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12602015 + ... + 12604283.

It is an arithmetic number, because the mean of its divisors is an integer number (1022616840).

Almost surely, 228596545081 is an apocalyptic number.

It is an amenable number.

28596545081 is a deficient number, since it is larger than the sum of its proper divisors (4127193799).

28596545081 is a wasteful number, since it uses less digits than its factorization.

28596545081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3057.

The product of its (nonzero) digits is 3456000, while the sum is 53.

The spelling of 28596545081 in words is "twenty-eight billion, five hundred ninety-six million, five hundred forty-five thousand, eighty-one".

Divisors: 1 13 23 61 299 691 793 1403 2269 8983 15893 18239 29497 42151 52187 138409 206609 547963 678431 969473 1567879 1799317 3183407 12603149 20382427 36061217 41384291 95640619 468795821 1243328047 2199734237 28596545081