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28060656253 = 790712773461
BaseRepresentation
bin11010001000100010…
…111010001001111101
32200102121002000212221
4122020202322021331
5424432012000003
620520233125341
72012240433310
oct321042721175
980377060787
1028060656253
111099a566403
125531559851
132852667616
141502a5c977
15ae37487bd
hex6888ba27d

28060656253 has 16 divisors (see below), whose sum is σ = 32139103104. Its totient is φ = 23999722560.

The previous prime is 28060656251. The next prime is 28060656271. The reversal of 28060656253 is 35265606082.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 28060656253 - 21 = 28060656251 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28060656251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8105943 + ... + 8109403.

It is an arithmetic number, because the mean of its divisors is an integer number (2008693944).

Almost surely, 228060656253 is an apocalyptic number.

It is an amenable number.

28060656253 is a deficient number, since it is larger than the sum of its proper divisors (4078446851).

28060656253 is a wasteful number, since it uses less digits than its factorization.

28060656253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5652.

The product of its (nonzero) digits is 518400, while the sum is 43.

The spelling of 28060656253 in words is "twenty-eight billion, sixty million, six hundred fifty-six thousand, two hundred fifty-three".

Divisors: 1 7 907 1277 3461 6349 8939 24227 1158239 3139127 4419697 8107673 21973889 30937879 4008665179 28060656253