Search a number
-
+
22919189760 = 28345443499
BaseRepresentation
bin10101010110000101…
…110001010100000000
32012011021111110210000
4111112011301110000
5333414303033020
614310125440000
71440646620135
oct252605612400
965137443700
1022919189760
1197a1315545
124537710000
13221340705c
141175c9458c
158e219b090
hex556171500

22919189760 has 360 divisors, whose sum is σ = 82358892000. Its totient is φ = 6085767168.

The previous prime is 22919189743. The next prime is 22919189767. The reversal of 22919189760 is 6798191922.

It is a tau number, because it is divible by the number of its divisors (360).

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 = 22919189697 and 22919189706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22919189767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 45929991 + ... + 45930489.

It is an arithmetic number, because the mean of its divisors is an integer number (228774700).

Almost surely, 222919189760 is an apocalyptic number.

22919189760 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 22919189760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41179446000).

22919189760 is an abundant number, since it is smaller than the sum of its proper divisors (59439702240).

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

22919189760 is an equidigital number, since it uses as much as digits as its factorization.

22919189760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 975 (or 952 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 54.

The spelling of 22919189760 in words is "twenty-two billion, nine hundred nineteen million, one hundred eighty-nine thousand, seven hundred sixty".