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12031413400420 = 2258834441153407
BaseRepresentation
bin1010111100010100100000…
…0111110011001101100100
31120121012011212221012001021
42233011020013303031210
53034110313312303140
641331053252140524
72351145432345211
oct257051007631544
946535155835037
1012031413400420
11391954822a557
121423928007744
1369373284599b
142d8475a26b08
1515ce70b89b4a
hexaf1481f3364

12031413400420 has 48 divisors (see below), whose sum is σ = 25300442539008. Its totient is φ = 4806001347840.

The previous prime is 12031413400387. The next prime is 12031413400441. The reversal of 12031413400420 is 2400431413021.

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, 78351357 + ... + 78504763.

It is an arithmetic number, because the mean of its divisors is an integer number (527092552896).

Almost surely, 212031413400420 is an apocalyptic number.

12031413400420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12031413400420 is an abundant number, since it is smaller than the sum of its proper divisors (13269029138588).

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

12031413400420 is a wasteful number, since it uses less digits than its factorization.

12031413400420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158740 (or 158738 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 12031413400420 its reverse (2400431413021), we get a palindrome (14431844813441).

The spelling of 12031413400420 in words is "twelve trillion, thirty-one billion, four hundred thirteen million, four hundred thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 883 1766 3532 4415 4441 8830 8882 17660 17764 22205 44410 88820 153407 306814 613628 767035 1534070 3068140 3921403 7842806 15685612 19607015 39214030 78428060 135458381 270916762 541833524 677291905 681280487 1354583810 1362560974 2709167620 2725121948 3406402435 6812804870 13625609740 601570670021 1203141340042 2406282680084 3007853350105 6015706700210 12031413400420