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12705082 = 213237589
BaseRepresentation
bin110000011101…
…110100111010
3212220111002121
4300131310322
511223030312
61132151454
7212664025
oct60356472
925814077
1012705082
117198575
12430858a
13282ac00
14198a1bc
1511ae707
hexc1dd3a

12705082 has 12 divisors (see below), whose sum is σ = 20636910. Its totient is φ = 5863728.

The previous prime is 12705067. The next prime is 12705101. The reversal of 12705082 is 28050721.

It can be written as a sum of positive squares in 3 ways, for example, as 7502121 + 5202961 = 2739^2 + 2281^2 .

It is a super-2 number, since 2×127050822 = 322838217253448, which contains 22 as substring.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 18457 + ... + 19132.

Almost surely, 212705082 is an apocalyptic number.

12705082 is a deficient number, since it is larger than the sum of its proper divisors (7931828).

12705082 is a wasteful number, since it uses less digits than its factorization.

12705082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37617 (or 37604 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 12705082 is about 3564.4188867191. The cubic root of 12705082 is about 233.3417715769.

The spelling of 12705082 in words is "twelve million, seven hundred five thousand, eighty-two".

Divisors: 1 2 13 26 169 338 37589 75178 488657 977314 6352541 12705082