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132930720 = 2535513263
BaseRepresentation
bin1111110110001…
…01110010100000
3100021010120200000
413323011302200
5233012240340
621105100000
73202615056
oct773056240
9307116600
10132930720
11690438aa
1238627600
1321703740
14139241d6
15ba0bd30
hex7ec5ca0

132930720 has 288 divisors, whose sum is σ = 508540032. Its totient is φ = 32596992.

The previous prime is 132930709. The next prime is 132930727. The reversal of 132930720 is 27039231.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (132930727) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 505309 + ... + 505571.

It is an arithmetic number, because the mean of its divisors is an integer number (1765764).

Almost surely, 2132930720 is an apocalyptic number.

132930720 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 132930720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (254270016).

132930720 is an abundant number, since it is smaller than the sum of its proper divisors (375609312).

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

132930720 is a wasteful number, since it uses less digits than its factorization.

132930720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306 (or 286 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 132930720 is about 11529.5585344800. The cubic root of 132930720 is about 510.3582258306.

Adding to 132930720 its reverse (27039231), we get a palindrome (159969951).

The spelling of 132930720 in words is "one hundred thirty-two million, nine hundred thirty thousand, seven hundred twenty".