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12340830 = 235411361
BaseRepresentation
bin101111000100…
…111001011110
3212012222102210
4233010321132
511124401310
61120301250
7206616045
oct57047136
925188383
1012340830
116a69937
124171826
132731188
1418d355c
15113b820
hexbc4e5e

12340830 has 16 divisors (see below), whose sum is σ = 29618064. Its totient is φ = 3290880.

The previous prime is 12340819. The next prime is 12340841. The reversal of 12340830 is 3804321.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12340819) and next prime (12340841).

It is a junction number, because it is equal to n+sod(n) for n = 12340797 and 12340806.

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, 205651 + ... + 205710.

It is an arithmetic number, because the mean of its divisors is an integer number (1851129).

Almost surely, 212340830 is an apocalyptic number.

12340830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12340830 is an abundant number, since it is smaller than the sum of its proper divisors (17277234).

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

12340830 is a wasteful number, since it uses less digits than its factorization.

12340830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411371.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 12340830 is about 3512.9517503091. The cubic root of 12340830 is about 231.0901617646.

The spelling of 12340830 in words is "twelve million, three hundred forty thousand, eight hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 411361 822722 1234083 2056805 2468166 4113610 6170415 12340830