Search a number
-
+
12920212960 = 25580751331
BaseRepresentation
bin11000000100001101…
…01100110111100000
31020100102122211012221
430002012230313200
5202430033303320
65534021000424
7635113666234
oct140206546740
936312584187
1012920212960
11553013a256
122606b53114
1312ab9b7535
148a7d1a5c4
155094413aa
hex3021acde0

12920212960 has 24 divisors (see below), whose sum is σ = 30524003496. Its totient is φ = 5168085120.

The previous prime is 12920212939. The next prime is 12920212961. The reversal of 12920212960 is 6921202921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12920212961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40375506 + ... + 40375825.

It is an arithmetic number, because the mean of its divisors is an integer number (1271833479).

Almost surely, 212920212960 is an apocalyptic number.

12920212960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12920212960 is an abundant number, since it is smaller than the sum of its proper divisors (17603790536).

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

12920212960 is an equidigital number, since it uses as much as digits as its factorization.

12920212960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80751346 (or 80751338 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 34.

The spelling of 12920212960 in words is "twelve billion, nine hundred twenty million, two hundred twelve thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 80751331 161502662 323005324 403756655 646010648 807513310 1292021296 1615026620 2584042592 3230053240 6460106480 12920212960