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23449690880 = 285721141829
BaseRepresentation
bin10101110101101101…
…011110001100000000
32020112020201201111122
4111311231132030000
5341011110102010
614434520131412
71460051040500
oct256555361400
966466651448
1023449690880
119a43814920
124665306b68
1322992ab245
1411c6509a00
15923a3b855
hex575b5e300

23449690880 has 432 divisors, whose sum is σ = 73106439840. Its totient is φ = 7122124800.

The previous prime is 23449690861. The next prime is 23449690903. The reversal of 23449690880 is 8809694432.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 28286306 + ... + 28287134.

It is an arithmetic number, because the mean of its divisors is an integer number (169227870).

Almost surely, 223449690880 is an apocalyptic number.

23449690880 is a gapful number since it is divisible by the number (20) 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 23449690880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36553219920).

23449690880 is an abundant number, since it is smaller than the sum of its proper divisors (49656748960).

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

23449690880 is a wasteful number, since it uses less digits than its factorization.

23449690880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916 (or 895 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 53.

The spelling of 23449690880 in words is "twenty-three billion, four hundred forty-nine million, six hundred ninety thousand, eight hundred eighty".