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120343420 = 22573139593
BaseRepresentation
bin1110010110001…
…00101101111100
322101110002010201
413023010231330
5221301442140
615535213244
72660621311
oct713045574
9271402121
10120343420
1161a2687a
1234377224
131bc17332
1411da8d08
15a87249a
hex72c4b7c

120343420 has 48 divisors (see below), whose sum is σ = 258461280. Its totient is φ = 47056896.

The previous prime is 120343411. The next prime is 120343439. The reversal of 120343420 is 24343021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 202644 + ... + 203236.

It is an arithmetic number, because the mean of its divisors is an integer number (5384610).

Almost surely, 2120343420 is an apocalyptic number.

120343420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120343420 is an abundant number, since it is smaller than the sum of its proper divisors (138117860).

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

120343420 is a wasteful number, since it uses less digits than its factorization.

120343420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 814 (or 812 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 120343420 is about 10970.1148581043. The cubic root of 120343420 is about 493.7124925843.

Adding to 120343420 its reverse (24343021), we get a palindrome (144686441).

The spelling of 120343420 in words is "one hundred twenty million, three hundred forty-three thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 73 139 146 278 292 365 556 593 695 730 1186 1390 1460 2372 2780 2965 5930 10147 11860 20294 40588 43289 50735 82427 86578 101470 164854 173156 202940 216445 329708 412135 432890 824270 865780 1648540 6017171 12034342 24068684 30085855 60171710 120343420