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12420040014 = 233409562349
BaseRepresentation
bin10111001000100101…
…01100010101001110
31012001120111101221000
423210102230111032
5200414012240024
65412232321130
7616531412124
oct134422542516
935046441830
1012420040014
1152a3874988
1224a75431a6
13122c1a1805
1485b71b914
154ca591cc9
hex2e44ac54e

12420040014 has 32 divisors (see below), whose sum is σ = 27667620000. Its totient is φ = 4129883712.

The previous prime is 12420039971. The next prime is 12420040021. The reversal of 12420040014 is 41004002421.

It is a super-2 number, since 2×124200400142 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 259089 + ... + 303260.

It is an arithmetic number, because the mean of its divisors is an integer number (864613125).

Almost surely, 212420040014 is an apocalyptic number.

12420040014 is an abundant number, since it is smaller than the sum of its proper divisors (15247579986).

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

12420040014 is a wasteful number, since it uses less digits than its factorization.

12420040014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562769 (or 562763 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 12420040014 its reverse (41004002421), we get a palindrome (53424042435).

The spelling of 12420040014 in words is "twelve billion, four hundred twenty million, forty thousand, fourteen".

Divisors: 1 2 3 6 9 18 27 54 409 818 1227 2454 3681 7362 11043 22086 562349 1124698 1687047 3374094 5061141 10122282 15183423 30366846 230000741 460001482 690002223 1380004446 2070006669 4140013338 6210020007 12420040014