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12550770510 = 2352973319681
BaseRepresentation
bin10111011000001010…
…11000111101001110
31012101200111012110020
423230011120331032
5201200444124020
65433222323010
7623006534445
oct135405307516
935350435406
1012550770510
115360645713
122523289466
1312502b4935
14870c2bd5c
154d6cb6c40
hex2ec158f4e

12550770510 has 64 divisors (see below), whose sum is σ = 31204630080. Its totient is φ = 3226890240.

The previous prime is 12550770503. The next prime is 12550770521. The reversal of 12550770510 is 1507705521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 627870 + ... + 647550.

It is an arithmetic number, because the mean of its divisors is an integer number (487572345).

Almost surely, 212550770510 is an apocalyptic number.

12550770510 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12550770510, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15602315040).

12550770510 is an abundant number, since it is smaller than the sum of its proper divisors (18653859570).

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

12550770510 is a wasteful number, since it uses less digits than its factorization.

12550770510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20453.

The product of its (nonzero) digits is 12250, while the sum is 33.

The spelling of 12550770510 in words is "twelve billion, five hundred fifty million, seven hundred seventy thousand, five hundred ten".

Divisors: 1 2 3 5 6 10 15 29 30 58 87 145 174 290 435 733 870 1466 2199 3665 4398 7330 10995 19681 21257 21990 39362 42514 59043 63771 98405 106285 118086 127542 196810 212570 295215 318855 570749 590430 637710 1141498 1712247 2853745 3424494 5707490 8561235 14426173 17122470 28852346 43278519 72130865 86557038 144261730 216392595 418359017 432785190 836718034 1255077051 2091795085 2510154102 4183590170 6275385255 12550770510