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13297793780 = 2251736176229
BaseRepresentation
bin11000110001001110…
…00011101011110100
31021022202010220201202
430120213003223310
5204213213400110
610035305512032
7650350245035
oct143047035364
937282126652
1013297793780
115704292317
1226b14a2618
13133bca953b
14902126a8c
1552c6770a5
hex3189c3af4

13297793780 has 48 divisors (see below), whose sum is σ = 28136823120. Its totient is φ = 5278952448.

The previous prime is 13297793779. The next prime is 13297793797. The reversal of 13297793780 is 8739779231.

13297793780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 241989136 + 13055804644 = 15556^2 + 114262^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2131706 + ... + 2137934.

It is an arithmetic number, because the mean of its divisors is an integer number (586183815).

Almost surely, 213297793780 is an apocalyptic number.

13297793780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13297793780 is an abundant number, since it is smaller than the sum of its proper divisors (14839029340).

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

13297793780 is a wasteful number, since it uses less digits than its factorization.

13297793780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7028 (or 7026 counting only the distinct ones).

The product of its (nonzero) digits is 4000752, while the sum is 56.

The spelling of 13297793780 in words is "thirteen billion, two hundred ninety-seven million, seven hundred ninety-three thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 173 346 617 692 865 1234 1730 2468 3085 3460 6170 6229 12340 12458 24916 31145 62290 106741 124580 213482 426964 533705 1067410 1077617 2134820 2155234 3843293 4310468 5388085 7686586 10776170 15373172 19216465 21552340 38432930 76865860 664889689 1329779378 2659558756 3324448445 6648896890 13297793780