Search a number
-
+
12919262080 = 27583243209
BaseRepresentation
bin11000000100000110…
…00100101110000000
31020100100212111212011
430002003010232000
5202424312341310
65533544342304
7635102626054
oct140203045600
936310774764
1012919262080
11552a64a8aa
122606774994
1312ab74379a
148a7b4dc64
1550930478a
hex3020c4b80

12919262080 has 64 divisors (see below), whose sum is σ = 31257349200. Its totient is φ = 5105422336.

The previous prime is 12919262053. The next prime is 12919262129. The reversal of 12919262080 is 8026291921.

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

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68485 + ... + 174724.

Almost surely, 212919262080 is an apocalyptic number.

12919262080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12919262080 is an abundant number, since it is smaller than the sum of its proper divisors (18338087120).

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

12919262080 is an equidigital number, since it uses as much as digits as its factorization.

12919262080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243311 (or 243299 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 40.

The spelling of 12919262080 in words is "twelve billion, nine hundred nineteen million, two hundred sixty-two thousand, eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 83 128 160 166 320 332 415 640 664 830 1328 1660 2656 3320 5312 6640 10624 13280 26560 53120 243209 486418 972836 1216045 1945672 2432090 3891344 4864180 7782688 9728360 15565376 19456720 20186347 31130752 38913440 40372694 77826880 80745388 100931735 155653760 161490776 201863470 322981552 403726940 645963104 807453880 1291926208 1614907760 2583852416 3229815520 6459631040 12919262080