Search a number
-
+
1143445060 = 225297127767
BaseRepresentation
bin100010000100111…
…1001011001000100
32221200121000202001
41010021321121010
54320210220220
6305243555044
740223060032
oct10411713104
92850530661
101143445060
1153749921a
1227ab2ba84
13152b82614
14abc0b552
156a5b880a
hex44279644

1143445060 has 48 divisors (see below), whose sum is σ = 2519112960. Its totient is φ = 435370880.

The previous prime is 1143445001. The next prime is 1143445067. The reversal of 1143445060 is 605443411.

It is not an unprimeable number, because it can be changed into a prime (1143445067) 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, 27297 + ... + 55063.

It is an arithmetic number, because the mean of its divisors is an integer number (52481520).

Almost surely, 21143445060 is an apocalyptic number.

1143445060 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 1143445060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1259556480).

1143445060 is an abundant number, since it is smaller than the sum of its proper divisors (1375667900).

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

1143445060 is a wasteful number, since it uses less digits than its factorization.

1143445060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27876 (or 27874 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 1143445060 is about 33814.8644829460. The cubic root of 1143445060 is about 1045.6951671291.

Adding to 1143445060 its reverse (605443411), we get a palindrome (1748888471).

The spelling of 1143445060 in words is "one billion, one hundred forty-three million, four hundred forty-five thousand, sixty".

Divisors: 1 2 4 5 10 20 29 58 71 116 142 145 284 290 355 580 710 1420 2059 4118 8236 10295 20590 27767 41180 55534 111068 138835 277670 555340 805243 1610486 1971457 3220972 3942914 4026215 7885828 8052430 9857285 16104860 19714570 39429140 57172253 114344506 228689012 285861265 571722530 1143445060