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12701530 = 253373769
BaseRepresentation
bin110000011100…
…111101011010
3212220022020001
4300130331122
511222422110
61132123214
7212650462
oct60347532
925808201
1012701530
117195936
12430650a
1328293ca
141988ba2
1511ad63a
hexc1cf5a

12701530 has 16 divisors (see below), whose sum is σ = 22936680. Its totient is φ = 5064192.

The previous prime is 12701527. The next prime is 12701531. The reversal of 12701530 is 3510721.

It can be written as a sum of positive squares in 4 ways, for example, as 10738729 + 1962801 = 3277^2 + 1401^2 .

It is a super-2 number, since 2×127015302 = 322657728681800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12701498 and 12701507.

It is not an unprimeable number, because it can be changed into a prime (12701531) 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 7 ways as a sum of consecutive naturals, for example, 1486 + ... + 5254.

Almost surely, 212701530 is an apocalyptic number.

12701530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12701530 is a deficient number, since it is larger than the sum of its proper divisors (10235150).

12701530 is a wasteful number, since it uses less digits than its factorization.

12701530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4113.

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 12701530 is about 3563.9205939527. The cubic root of 12701530 is about 233.3200241842.

It can be divided in two parts, 12701 and 530, that added together give a palindrome (13231).

The spelling of 12701530 in words is "twelve million, seven hundred one thousand, five hundred thirty".

Divisors: 1 2 5 10 337 674 1685 3370 3769 7538 18845 37690 1270153 2540306 6350765 12701530