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12340370 = 257296079
BaseRepresentation
bin101111000100…
…110010010010
3212012221210202
4233010302102
511124342440
61120255202
7206614520
oct57046222
925187722
1012340370
116a69559
124171502
132730bc3
1418d3310
15113b615
hexbc4c92

12340370 has 32 divisors (see below), whose sum is σ = 26265600. Its totient is φ = 4084416.

The previous prime is 12340343. The next prime is 12340373. The reversal of 12340370 is 7304321.

It is not an unprimeable number, because it can be changed into a prime (12340373) 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, 1010 + ... + 5069.

It is an arithmetic number, because the mean of its divisors is an integer number (820800).

Almost surely, 212340370 is an apocalyptic number.

12340370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12340370 is an abundant number, since it is smaller than the sum of its proper divisors (13925230).

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

12340370 is a wasteful number, since it uses less digits than its factorization.

12340370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6122.

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 12340370 is about 3512.8862776925. The cubic root of 12340370 is about 231.0872904614.

Adding to 12340370 its reverse (7304321), we get a palindrome (19644691).

The spelling of 12340370 in words is "twelve million, three hundred forty thousand, three hundred seventy".

Divisors: 1 2 5 7 10 14 29 35 58 70 145 203 290 406 1015 2030 6079 12158 30395 42553 60790 85106 176291 212765 352582 425530 881455 1234037 1762910 2468074 6170185 12340370