Search a number
-
+
1308775120 = 245127912791
BaseRepresentation
bin100111000000010…
…0101001011010000
310101012200122221121
41032000211023100
510140021300440
6333511332024
744301255622
oct11600451320
93335618847
101308775120
11611851134
12306381014
1317b1bb163
14c5b66c12
1579d7534a
hex4e0252d0

1308775120 has 40 divisors (see below), whose sum is σ = 3045519360. Its totient is φ = 523059840.

The previous prime is 1308775109. The next prime is 1308775123. The reversal of 1308775120 is 215778031.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1308775123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95925 + ... + 108715.

It is an arithmetic number, because the mean of its divisors is an integer number (76137984).

Almost surely, 21308775120 is an apocalyptic number.

1308775120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1308775120 is an abundant number, since it is smaller than the sum of its proper divisors (1736744240).

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

1308775120 is a wasteful number, since it uses less digits than its factorization.

1308775120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14083 (or 14077 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 34.

The square root of 1308775120 is about 36176.9971114243. The cubic root of 1308775120 is about 1093.8430459292.

The spelling of 1308775120 in words is "one billion, three hundred eight million, seven hundred seventy-five thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 1279 2558 5116 6395 10232 12790 12791 20464 25580 25582 51160 51164 63955 102320 102328 127910 204656 255820 511640 1023280 16359689 32719378 65438756 81798445 130877512 163596890 261755024 327193780 654387560 1308775120