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12874212 = 22321327509
BaseRepresentation
bin110001000111…
…000111100100
3220020002002200
4301013013210
511243433322
61135534500
7214300101
oct61070744
926202080
1012874212
1172a364a
12438a430
132889ba0
1419d1aa8
1511e48ac
hexc471e4

12874212 has 36 divisors (see below), whose sum is σ = 35047740. Its totient is φ = 3961152.

The previous prime is 12874201. The next prime is 12874223. The reversal of 12874212 is 21247821.

It is an interprime number because it is at equal distance from previous prime (12874201) and next prime (12874223).

It can be written as a sum of positive squares in 2 ways, for example, as 1218816 + 11655396 = 1104^2 + 3414^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 13287 + ... + 14222.

Almost surely, 212874212 is an apocalyptic number.

12874212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12874212 is an abundant number, since it is smaller than the sum of its proper divisors (22173528).

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

12874212 is a wasteful number, since it uses less digits than its factorization.

12874212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27532 (or 27527 counting only the distinct ones).

The product of its digits is 1792, while the sum is 27.

The square root of 12874212 is about 3588.0652167986. The cubic root of 12874212 is about 234.3726256826.

The spelling of 12874212 in words is "twelve million, eight hundred seventy-four thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 12 13 18 26 36 39 52 78 117 156 234 468 27509 55018 82527 110036 165054 247581 330108 357617 495162 715234 990324 1072851 1430468 2145702 3218553 4291404 6437106 12874212