Search a number
-
+
1130431360 = 27512791381
BaseRepresentation
bin100001101100001…
…0000001110000000
32220210002212022011
41003120100032000
54303342300420
6304101022304
740004336152
oct10330201600
92823085264
101130431360
1153010a8a3
122766b4994
131502770c6
14aa1c0ad2
156939795a
hex43610380

1130431360 has 64 divisors (see below), whose sum is σ = 2706508800. Its totient is φ = 451491840.

The previous prime is 1130431333. The next prime is 1130431369. The reversal of 1130431360 is 631340311.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-3 number, since 3×11304313603 (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1130431369) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 817870 + ... + 819250.

It is an arithmetic number, because the mean of its divisors is an integer number (42289200).

Almost surely, 21130431360 is an apocalyptic number.

1130431360 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 1130431360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1353254400).

1130431360 is an abundant number, since it is smaller than the sum of its proper divisors (1576077440).

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

1130431360 is a wasteful number, since it uses less digits than its factorization.

1130431360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2679 (or 2667 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 1130431360 is about 33621.8881087901. Note that the first 3 decimals coincide. The cubic root of 1130431360 is about 1041.7129561794.

Adding to 1130431360 its reverse (631340311), we get a palindrome (1761771671).

The spelling of 1130431360 in words is "one billion, one hundred thirty million, four hundred thirty-one thousand, three hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 320 640 1279 1381 2558 2762 5116 5524 6395 6905 10232 11048 12790 13810 20464 22096 25580 27620 40928 44192 51160 55240 81856 88384 102320 110480 163712 176768 204640 220960 409280 441920 818560 883840 1766299 3532598 7065196 8831495 14130392 17662990 28260784 35325980 56521568 70651960 113043136 141303920 226086272 282607840 565215680 1130431360