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12693829 = 22356923
BaseRepresentation
bin110000011011…
…000101000101
3212212220122211
4300123011011
511222200304
61132023421
7212616151
oct60330505
925786584
1012693829
117190075
124301b71
132825a55
141986061
1511ab204
hexc1b145

12693829 has 4 divisors (see below), whose sum is σ = 12750976. Its totient is φ = 12636684.

The previous prime is 12693817. The next prime is 12693839. The reversal of 12693829 is 92839621.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12693829 - 25 = 12693797 is a prime.

It is a super-2 number, since 2×126938292 = 322266589362482, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12693791 and 12693800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12693839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28239 + ... + 28684.

It is an arithmetic number, because the mean of its divisors is an integer number (3187744).

Almost surely, 212693829 is an apocalyptic number.

It is an amenable number.

12693829 is a deficient number, since it is larger than the sum of its proper divisors (57147).

12693829 is an equidigital number, since it uses as much as digits as its factorization.

12693829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57146.

The product of its digits is 46656, while the sum is 40.

The square root of 12693829 is about 3562.8400188614. The cubic root of 12693829 is about 233.2728602923.

The spelling of 12693829 in words is "twelve million, six hundred ninety-three thousand, eight hundred twenty-nine".

Divisors: 1 223 56923 12693829