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28114727466 = 23717267181191
BaseRepresentation
bin11010001011110001…
…001011001000101010
32200120100211010122110
4122023301023020222
5430034332234331
620525444103150
72013465145320
oct321361131052
980510733573
1028114727466
1110a18037961
125547694ab6
132860919b17
141509cd5d10
15ae8379946
hex68bc4b22a

28114727466 has 192 divisors, whose sum is σ = 70031130624. Its totient is φ = 7367500800.

The previous prime is 28114727461. The next prime is 28114727497. The reversal of 28114727466 is 66472741182.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28114727461) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 147197431 + ... + 147197621.

It is an arithmetic number, because the mean of its divisors is an integer number (364745472).

Almost surely, 228114727466 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28114727466, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35015565312).

28114727466 is an abundant number, since it is smaller than the sum of its proper divisors (41916403158).

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

28114727466 is a wasteful number, since it uses less digits than its factorization.

28114727466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485 (or 468 counting only the distinct ones).

The product of its digits is 903168, while the sum is 48.

The spelling of 28114727466 in words is "twenty-eight billion, one hundred fourteen million, seven hundred twenty-seven thousand, four hundred sixty-six".