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23091982848 = 29351147359
BaseRepresentation
bin10101100000011000…
…111011001000000000
32012121022122021100000
4111200120323020000
5334243021422343
614335221200000
71445145421104
oct254030731000
965538567300
1023091982848
11987a905550
124585560000
13224015679c
141190bd3904
1590242ded3
hex56063b200

23091982848 has 480 divisors, whose sum is σ = 77215057920. Its totient is φ = 6829608960.

The previous prime is 23091982831. The next prime is 23091982877. The reversal of 23091982848 is 84828919032.

It is a super-2 number, since 2×230919828482 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 23091982794 and 23091982803.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 64322893 + ... + 64323251.

It is an arithmetic number, because the mean of its divisors is an integer number (160864704).

Almost surely, 223091982848 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23091982848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38607528960).

23091982848 is an abundant number, since it is smaller than the sum of its proper divisors (54123075072).

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

23091982848 is an equidigital number, since it uses as much as digits as its factorization.

23091982848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450 (or 422 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 54.

The spelling of 23091982848 in words is "twenty-three billion, ninety-one million, nine hundred eighty-two thousand, eight hundred forty-eight".