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12379340 = 2256173139
BaseRepresentation
bin101111001110…
…010011001100
3212021221021002
4233032103030
511132114330
61121155432
7210136241
oct57162314
925257232
1012379340
116a95866
12418bb78
13274586c
1419035c8
151147e45
hexbce4cc

12379340 has 48 divisors (see below), whose sum is σ = 26977440. Its totient is φ = 4769280.

The previous prime is 12379337. The next prime is 12379343. The reversal of 12379340 is 4397321.

It is an interprime number because it is at equal distance from previous prime (12379337) and next prime (12379343).

It is not an unprimeable number, because it can be changed into a prime (12379343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88991 + ... + 89129.

It is an arithmetic number, because the mean of its divisors is an integer number (562030).

Almost surely, 212379340 is an apocalyptic number.

12379340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12379340 is an abundant number, since it is smaller than the sum of its proper divisors (14598100).

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

12379340 is a wasteful number, since it uses less digits than its factorization.

12379340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282 (or 280 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 12379340 is about 3518.4286265320. The cubic root of 12379340 is about 231.3302871939.

The spelling of 12379340 in words is "twelve million, three hundred seventy-nine thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 61 73 122 139 146 244 278 292 305 365 556 610 695 730 1220 1390 1460 2780 4453 8479 8906 10147 16958 17812 20294 22265 33916 40588 42395 44530 50735 84790 89060 101470 169580 202940 618967 1237934 2475868 3094835 6189670 12379340