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28968370368 = 2637219162059
BaseRepresentation
bin11010111110101001…
…100100000011000000
32202202212002200120020
4122332221210003000
5433311400322433
621150300413440
72043602041200
oct327651440300
982685080506
1028968370368
1111315987463
125745547280
132968732272
14158b426400
15b4829acb3
hex6bea640c0

28968370368 has 168 divisors, whose sum is σ = 93852187200. Its totient is φ = 7841014272.

The previous prime is 28968370339. The next prime is 28968370369. The reversal of 28968370368 is 86307386982.

It is a tau number, because it is divible by the number of its divisors (168).

It is a super-3 number, since 3×289683703683 (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (28968370369) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 97723 + ... + 259781.

Almost surely, 228968370368 is an apocalyptic number.

28968370368 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28968370368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46926093600).

28968370368 is an abundant number, since it is smaller than the sum of its proper divisors (64883816832).

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

28968370368 is a wasteful number, since it uses less digits than its factorization.

28968370368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162107 (or 162090 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 60.

The spelling of 28968370368 in words is "twenty-eight billion, nine hundred sixty-eight million, three hundred seventy thousand, three hundred sixty-eight".