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120532240 = 2451506653
BaseRepresentation
bin1110010111100…
…10110100010000
322101210200011001
413023302310100
5221324012430
615543231344
72662335643
oct713626420
9271720131
10120532240
1162045724
1234448554
131bc8226a
1412017a5a
15a8ad3ca
hex72f2d10

120532240 has 20 divisors (see below), whose sum is σ = 280237644. Its totient is φ = 48212864.

The previous prime is 120532211. The next prime is 120532267. The reversal of 120532240 is 42235021.

It can be written as a sum of positive squares in 2 ways, for example, as 39388176 + 81144064 = 6276^2 + 9008^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 753247 + ... + 753406.

Almost surely, 2120532240 is an apocalyptic number.

120532240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120532240 is an abundant number, since it is smaller than the sum of its proper divisors (159705404).

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

120532240 is a wasteful number, since it uses less digits than its factorization.

120532240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1506666 (or 1506660 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 120532240 is about 10978.7175935990. The cubic root of 120532240 is about 493.9705708946.

Adding to 120532240 its reverse (42235021), we get a palindrome (162767261).

The spelling of 120532240 in words is "one hundred twenty million, five hundred thirty-two thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 40 80 1506653 3013306 6026612 7533265 12053224 15066530 24106448 30133060 60266120 120532240