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120034420 = 225112193257
BaseRepresentation
bin1110010011110…
…01010001110100
322100212101021021
413021321101310
5221212100140
615524430524
72655163402
oct711712164
9270771237
10120034420
1161835700
1234248444
131bb397ac
1411d28472
15a810b4a
hex7279474

120034420 has 72 divisors (see below), whose sum is σ = 279590472. Its totient is φ = 43253760.

The previous prime is 120034403. The next prime is 120034427. The reversal of 120034420 is 24430021.

It can be written as a sum of positive squares in 4 ways, for example, as 29289744 + 90744676 = 5412^2 + 9526^2 .

It is a junction number, because it is equal to n+sod(n) for n = 120034394 and 120034403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120034427) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 466932 + ... + 467188.

It is an arithmetic number, because the mean of its divisors is an integer number (3883201).

Almost surely, 2120034420 is an apocalyptic number.

120034420 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 120034420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139795236).

120034420 is an abundant number, since it is smaller than the sum of its proper divisors (159556052).

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

120034420 is a wasteful number, since it uses less digits than its factorization.

120034420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481 (or 468 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 120034420 is about 10956.0220883311. The cubic root of 120034420 is about 493.2895698132.

Adding to 120034420 its reverse (24430021), we get a palindrome (144464441).

The spelling of 120034420 in words is "one hundred twenty million, thirty-four thousand, four hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 121 193 220 242 257 386 484 514 605 772 965 1028 1210 1285 1930 2123 2420 2570 2827 3860 4246 5140 5654 8492 10615 11308 14135 21230 23353 28270 31097 42460 46706 49601 56540 62194 93412 99202 116765 124388 155485 198404 233530 248005 310970 467060 496010 545611 621940 992020 1091222 2182444 2728055 5456110 6001721 10912220 12003442 24006884 30008605 60017210 120034420