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12441940 = 2257181491
BaseRepresentation
bin101111011101…
…100101010100
3212102010010121
4233131211110
511141120230
61122401324
7210516610
oct57354524
925363117
1012441940
1170288a5
124200244
1327681c4
14191c340
15115b77a
hexbdd954

12441940 has 48 divisors (see below), whose sum is σ = 30086784. Its totient is φ = 4233600.

The previous prime is 12441937. The next prime is 12441991. The reversal of 12441940 is 4914421.

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, 25095 + ... + 25585.

It is an arithmetic number, because the mean of its divisors is an integer number (626808).

Almost surely, 212441940 is an apocalyptic number.

12441940 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 12441940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15043392).

12441940 is an abundant number, since it is smaller than the sum of its proper divisors (17644844).

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

12441940 is a wasteful number, since it uses less digits than its factorization.

12441940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688 (or 686 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 12441940 is about 3527.3134252572. The cubic root of 12441940 is about 231.7195630525.

The spelling of 12441940 in words is "twelve million, four hundred forty-one thousand, nine hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 181 362 491 724 905 982 1267 1810 1964 2455 2534 3437 3620 4910 5068 6335 6874 9820 12670 13748 17185 25340 34370 68740 88871 177742 355484 444355 622097 888710 1244194 1777420 2488388 3110485 6220970 12441940