Search a number
-
+
12708944660660 = 22511325122404091
BaseRepresentation
bin1011100011110000100000…
…1000011100100010110100
31122222222000012112100020112
42320330020020130202310
53131210404313120120
643010224130322152
72451122332133633
oct270741010344264
948888005470215
1012708944660660
11405a918a37436
1215130b3a29358
137125aa002331
1431d18ac1151a
151708c73c2bc5
hexb8f0821c8b4

12708944660660 has 48 divisors (see below), whose sum is σ = 27032239708992. Its totient is φ = 5018516160000.

The previous prime is 12708944660641. The next prime is 12708944660701. The reversal of 12708944660660 is 6606644980721.

It is a self number, because there is not a number n which added to its sum of digits gives 12708944660660.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10634786 + ... + 11769305.

It is an arithmetic number, because the mean of its divisors is an integer number (563171660604).

Almost surely, 212708944660660 is an apocalyptic number.

12708944660660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12708944660660 is an abundant number, since it is smaller than the sum of its proper divisors (14323295048332).

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

12708944660660 is a wasteful number, since it uses less digits than its factorization.

12708944660660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22404464 (or 22404462 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 59.

The spelling of 12708944660660 in words is "twelve trillion, seven hundred eight billion, nine hundred forty-four million, six hundred sixty thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 113 226 251 452 502 565 1004 1130 1255 2260 2510 5020 28363 56726 113452 141815 283630 567260 22404091 44808182 89616364 112020455 224040910 448081820 2531662283 5063324566 5623426841 10126649132 11246853682 12658311415 22493707364 25316622830 28117134205 50633245660 56234268410 112468536820 635447233033 1270894466066 2541788932132 3177236165165 6354472330330 12708944660660