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12340770 = 2351331643
BaseRepresentation
bin101111000100…
…111000100010
3212012222100120
4233010320202
511124401040
61120301110
7206615631
oct57047042
925188316
1012340770
116a69892
124171796
132731140
1418d3518
15113b7d0
hexbc4e22

12340770 has 32 divisors (see below), whose sum is σ = 31897152. Its totient is φ = 3037632.

The previous prime is 12340753. The next prime is 12340771. The reversal of 12340770 is 7704321.

It is a self number, because there is not a number n which added to its sum of digits gives 12340770.

It is not an unprimeable number, because it can be changed into a prime (12340771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15432 + ... + 16211.

It is an arithmetic number, because the mean of its divisors is an integer number (996786).

Almost surely, 212340770 is an apocalyptic number.

12340770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12340770 is an abundant number, since it is smaller than the sum of its proper divisors (19556382).

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

12340770 is a wasteful number, since it uses less digits than its factorization.

12340770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31666.

The product of its (nonzero) digits is 1176, while the sum is 24.

The square root of 12340770 is about 3512.9432104718. The cubic root of 12340770 is about 231.0897872509.

The spelling of 12340770 in words is "twelve million, three hundred forty thousand, seven hundred seventy".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 78 130 195 390 31643 63286 94929 158215 189858 316430 411359 474645 822718 949290 1234077 2056795 2468154 4113590 6170385 12340770