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10989892872 = 2332734379131
BaseRepresentation
bin10100011110000110…
…00111010100001000
31001100220102101212100
422033003013110020
5140001403032442
65014303313400
7536224356000
oct121703072410
931326371770
1010989892872
11472a5651a2
1221685ab860
131061ac90ba
147637dd000
15444c4484c
hex28f0c7508

10989892872 has 384 divisors, whose sum is σ = 36241920000. Its totient is φ = 3005009280.

The previous prime is 10989892871. The next prime is 10989892877. The reversal of 10989892872 is 27829898901.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (10989892871) 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, 83892247 + ... + 83892377.

It is an arithmetic number, because the mean of its divisors is an integer number (94380000).

Almost surely, 210989892872 is an apocalyptic number.

10989892872 is a gapful number since it is divisible by the number (12) 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 10989892872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18120960000).

10989892872 is an abundant number, since it is smaller than the sum of its proper divisors (25252027128).

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

10989892872 is a wasteful number, since it uses less digits than its factorization.

10989892872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286 (or 265 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 63.

The spelling of 10989892872 in words is "ten billion, nine hundred eighty-nine million, eight hundred ninety-two thousand, eight hundred seventy-two".