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130266240 = 27351317307
BaseRepresentation
bin1111100001110…
…11010010000000
3100002010012200120
413300323102000
5231322004430
620532020240
73141146646
oct760732200
9302105616
10130266240
1167593a55
1237761680
1320caca20
141342d196
15b682610
hex7c3b480

130266240 has 256 divisors, whose sum is σ = 475009920. Its totient is φ = 30081024.

The previous prime is 130266203. The next prime is 130266329. The reversal of 130266240 is 42662031.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 130266240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 424167 + ... + 424473.

Almost surely, 2130266240 is an apocalyptic number.

130266240 is a gapful number since it is divisible by the number (10) 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 130266240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (237504960).

130266240 is an abundant number, since it is smaller than the sum of its proper divisors (344743680).

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

130266240 is a wasteful number, since it uses less digits than its factorization.

130266240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359 (or 347 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 130266240 is about 11413.4236756549. The cubic root of 130266240 is about 506.9252911716.

The spelling of 130266240 in words is "one hundred thirty million, two hundred sixty-six thousand, two hundred forty".