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12002140220 = 2257431993711
BaseRepresentation
bin10110010110110001…
…00010000000111100
31010222110010220011212
423023120202000330
5144040021441340
65302543303552
7603265336310
oct131330420074
933873126155
1012002140220
1150a9993654
1223ab5aabb8
131193733a25
1481c017b40
154a3a44a65
hex2cb62203c

12002140220 has 48 divisors (see below), whose sum is σ = 29475038208. Its totient is φ = 4019319360.

The previous prime is 12002140219. The next prime is 12002140223. The reversal of 12002140220 is 2204120021.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 12002140195 and 12002140204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12002140223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 990836 + ... + 1002875.

It is an arithmetic number, because the mean of its divisors is an integer number (614063296).

Almost surely, 212002140220 is an apocalyptic number.

12002140220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12002140220 is an abundant number, since it is smaller than the sum of its proper divisors (17472897988).

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

12002140220 is a wasteful number, since it uses less digits than its factorization.

12002140220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1993770 (or 1993768 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 12002140220 its reverse (2204120021), we get a palindrome (14206260241).

The spelling of 12002140220 in words is "twelve billion, two million, one hundred forty thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 43 70 86 140 172 215 301 430 602 860 1204 1505 3010 6020 1993711 3987422 7974844 9968555 13955977 19937110 27911954 39874220 55823908 69779885 85729573 139559770 171459146 279119540 342918292 428647865 600107011 857295730 1200214022 1714591460 2400428044 3000535055 6001070110 12002140220