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12452344120 = 2353159170207
BaseRepresentation
bin10111001100011011…
…11011000100111000
31012010211021121211101
423212031323010320
5201000300002440
65415344541144
7620403115156
oct134615730470
935124247741
1012452344120
115310029497
1224b63217b4
131235aa2478
14861b2a3d6
154cd32369a
hex2e637b138

12452344120 has 64 divisors (see below), whose sum is σ = 29411942400. Its totient is φ = 4738535040.

The previous prime is 12452344109. The next prime is 12452344153. The reversal of 12452344120 is 2144325421.

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, 11944 + ... + 158263.

It is an arithmetic number, because the mean of its divisors is an integer number (459561600).

Almost surely, 212452344120 is an apocalyptic number.

12452344120 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 12452344120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14705971200).

12452344120 is an abundant number, since it is smaller than the sum of its proper divisors (16959598280).

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

12452344120 is a wasteful number, since it uses less digits than its factorization.

12452344120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170308 (or 170304 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

Adding to 12452344120 its reverse (2144325421), we get a palindrome (14596669541).

The spelling of 12452344120 in words is "twelve billion, four hundred fifty-two million, three hundred forty-four thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 31 40 59 62 118 124 155 236 248 295 310 472 590 620 1180 1240 1829 2360 3658 7316 9145 14632 18290 36580 73160 170207 340414 680828 851035 1361656 1702070 3404140 5276417 6808280 10042213 10552834 20084426 21105668 26382085 40168852 42211336 50211065 52764170 80337704 100422130 105528340 200844260 211056680 311308603 401688520 622617206 1245234412 1556543015 2490468824 3113086030 6226172060 12452344120