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28135241588 = 22571104911743
BaseRepresentation
bin11010001100111111…
…011011011101110100
32200121210102100201202
4122030333123131310
5430110110212323
620531455512032
72014134415256
oct321477333564
980553370652
1028135241588
1110a28679483
125552528618
132864c5025c
14150c915cd6
15aea07cd28
hex68cfdb774

28135241588 has 24 divisors (see below), whose sum is σ = 49374124800. Its totient is φ = 14028402240.

The previous prime is 28135241531. The next prime is 28135241611. The reversal of 28135241588 is 88514253182.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2390045 + ... + 2401787.

It is an arithmetic number, because the mean of its divisors is an integer number (2057255200).

Almost surely, 228135241588 is an apocalyptic number.

It is an amenable number.

28135241588 is a deficient number, since it is larger than the sum of its proper divisors (21238883212).

28135241588 is a wasteful number, since it uses less digits than its factorization.

28135241588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13367 (or 13365 counting only the distinct ones).

The product of its digits is 614400, while the sum is 47.

The spelling of 28135241588 in words is "twenty-eight billion, one hundred thirty-five million, two hundred forty-one thousand, five hundred eighty-eight".

Divisors: 1 2 4 571 1049 1142 2098 2284 4196 11743 23486 46972 598979 1197958 2395916 6705253 12318407 13410506 24636814 26821012 49273628 7033810397 14067620794 28135241588