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130432220 = 225137181263
BaseRepresentation
bin1111100011000…
…11110011011100
3100002102122100222
413301203303130
5231342312340
620535340512
73142440602
oct761436334
9302378328
10130432220
1167697726
1237821738
132103a439
1413473872
15b6b68b5
hex7c63cdc

130432220 has 48 divisors (see below), whose sum is σ = 278486208. Its totient is φ = 51310080.

The previous prime is 130432199. The next prime is 130432229. The reversal of 130432220 is 22234031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130432229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 495809 + ... + 496071.

It is an arithmetic number, because the mean of its divisors is an integer number (5801796).

Almost surely, 2130432220 is an apocalyptic number.

130432220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130432220 is an abundant number, since it is smaller than the sum of its proper divisors (148053988).

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

130432220 is a wasteful number, since it uses less digits than its factorization.

130432220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590 (or 588 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 130432220 is about 11420.6926234795. The cubic root of 130432220 is about 507.1405010612.

Adding to 130432220 its reverse (22234031), we get a palindrome (152666251).

The spelling of 130432220 in words is "one hundred thirty million, four hundred thirty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 137 181 263 274 362 526 548 685 724 905 1052 1315 1370 1810 2630 2740 3620 5260 24797 36031 47603 49594 72062 95206 99188 123985 144124 180155 190412 238015 247970 360310 476030 495940 720620 952060 6521611 13043222 26086444 32608055 65216110 130432220