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22520230488 = 233272329312161
BaseRepresentation
bin10100111110010011…
…110111001001011000
32011010110210020112200
4110332103313021120
5332110134333423
614202354410200
71425033541440
oct247623671130
964113706480
1022520230488
1196070a0538
124445b90960
13217b86b392
141138cc1120
158bc140d43
hex53e4f7258

22520230488 has 384 divisors, whose sum is σ = 77707468800. Its totient is φ = 5748019200.

The previous prime is 22520230487. The next prime is 22520230493. The reversal of 22520230488 is 88403202522.

22520230488 is a `hidden beast` number, since 22 + 520 + 2 + 30 + 4 + 88 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22520230487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 10420128 + ... + 10422288.

It is an arithmetic number, because the mean of its divisors is an integer number (202363200).

Almost surely, 222520230488 is an apocalyptic number.

22520230488 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 22520230488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38853734400).

22520230488 is an abundant number, since it is smaller than the sum of its proper divisors (55187238312).

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

22520230488 is a wasteful number, since it uses less digits than its factorization.

22520230488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2263 (or 2256 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 36.

The spelling of 22520230488 in words is "twenty-two billion, five hundred twenty million, two hundred thirty thousand, four hundred eighty-eight".