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12503021141220 = 22353124623272999
BaseRepresentation
bin1011010111110001011000…
…1000100011110011100100
31122021021111001002200200020
42311330112020203303210
53114322141403004340
642331450354515140
72430212343115641
oct265742610436344
948237431080606
1012503021141220
113a90557532425
12149b204595ab0
136c905071488c
1431321414cdc8
1516a373dc19d0
hexb5f16223ce4

12503021141220 has 96 divisors (see below), whose sum is σ = 36139364352000. Its totient is φ = 3226443242880.

The previous prime is 12503021141203. The next prime is 12503021141243. The reversal of 12503021141220 is 2214112030521.

It is a happy number.

12503021141220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 45662281 + ... + 45935279.

It is an arithmetic number, because the mean of its divisors is an integer number (376451712000).

Almost surely, 212503021141220 is an apocalyptic number.

12503021141220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12503021141220 is an abundant number, since it is smaller than the sum of its proper divisors (23636343210780).

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

12503021141220 is a wasteful number, since it uses less digits than its factorization.

12503021141220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297665 (or 297663 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 12503021141220 its reverse (2214112030521), we get a palindrome (14717133171741).

The spelling of 12503021141220 in words is "twelve trillion, five hundred three billion, twenty-one million, one hundred forty-one thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 31 60 62 93 124 155 186 310 372 465 620 930 1860 24623 49246 73869 98492 123115 147738 246230 272999 295476 369345 492460 545998 738690 763313 818997 1091996 1364995 1477380 1526626 1637994 2289939 2729990 3053252 3275988 3816565 4094985 4579878 5459980 7633130 8189970 8462969 9159756 11449695 15266260 16379940 16925938 22899390 25388907 33851876 42314845 45798780 50777814 84629690 101555628 126944535 169259380 253889070 507778140 6722054377 13444108754 20166163131 26888217508 33610271885 40332326262 67220543770 80664652524 100830815655 134441087540 201661631310 208383685687 403323262620 416767371374 625151057061 833534742748 1041918428435 1250302114122 2083836856870 2500604228244 3125755285305 4167673713740 6251510570610 12503021141220