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12308830 = 254726189
BaseRepresentation
bin101110111101…
…000101011110
3212011100112121
4232331011132
511122340310
61115453154
7206423542
oct56750536
925140477
1012308830
116a47896
1241571ba
13271c741
1418c5a22
1511320da
hexbbd15e

12308830 has 16 divisors (see below), whose sum is σ = 22628160. Its totient is φ = 4818592.

The previous prime is 12308819. The next prime is 12308831. The reversal of 12308830 is 3880321.

It is a junction number, because it is equal to n+sod(n) for n = 12308795 and 12308804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12308831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12625 + ... + 13564.

It is an arithmetic number, because the mean of its divisors is an integer number (1414260).

Almost surely, 212308830 is an apocalyptic number.

12308830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12308830 is a deficient number, since it is larger than the sum of its proper divisors (10319330).

12308830 is a wasteful number, since it uses less digits than its factorization.

12308830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26243.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 12308830 is about 3508.3942195825. The cubic root of 12308830 is about 230.8902485203.

The spelling of 12308830 in words is "twelve million, three hundred eight thousand, eight hundred thirty".

Divisors: 1 2 5 10 47 94 235 470 26189 52378 130945 261890 1230883 2461766 6154415 12308830