Search a number
-
+
17420989230 = 23251953211911
BaseRepresentation
bin10000001110010111…
…110011001100101110
31122222002122221120100
4100032113303030232
5241134233123410
612000400131530
71154464652031
oct201627631456
948862587510
1017420989230
11742a770067
123462306ba6
1318482a3468
14bb3989018
156be6348c0
hex40e5f332e

17420989230 has 192 divisors, whose sum is σ = 48861895680. Its totient is φ = 4292870400.

The previous prime is 17420989217. The next prime is 17420989237. The reversal of 17420989230 is 3298902471.

It is a super-3 number, since 3×174209892303 (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17420989237) 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, 19122475 + ... + 19123385.

It is an arithmetic number, because the mean of its divisors is an integer number (254489040).

Almost surely, 217420989230 is an apocalyptic number.

17420989230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 17420989230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24430947840).

17420989230 is an abundant number, since it is smaller than the sum of its proper divisors (31440906450).

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

17420989230 is a wasteful number, since it uses less digits than its factorization.

17420989230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1207 (or 1204 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The spelling of 17420989230 in words is "seventeen billion, four hundred twenty million, nine hundred eighty-nine thousand, two hundred thirty".