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12395412340 = 2255227118571
BaseRepresentation
bin10111000101101001…
…01111101101110100
31011222212011012002221
423202310233231310
5200341211143330
65405552412124
7616112160253
oct134264575564
934885135087
1012395412340
115290983833
12249b247044
13122705ac1c
1485834a79a
154c8329b7a
hex2e2d2fb74

12395412340 has 24 divisors (see below), whose sum is σ = 26035565472. Its totient is φ = 4957174560.

The previous prime is 12395412307. The next prime is 12395412353. The reversal of 12395412340 is 4321459321.

It is a junction number, because it is equal to n+sod(n) for n = 12395412296 and 12395412305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45255 + ... + 163825.

It is an arithmetic number, because the mean of its divisors is an integer number (1084815228).

Almost surely, 212395412340 is an apocalyptic number.

12395412340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12395412340 is an abundant number, since it is smaller than the sum of its proper divisors (13640153132).

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

12395412340 is a wasteful number, since it uses less digits than its factorization.

12395412340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123807 (or 123805 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The spelling of 12395412340 in words is "twelve billion, three hundred ninety-five million, four hundred twelve thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 5227 10454 20908 26135 52270 104540 118571 237142 474284 592855 1185710 2371420 619770617 1239541234 2479082468 3098853085 6197706170 12395412340