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12999101 = 173372269
BaseRepresentation
bin110001100101…
…100110111101
3220110102102012
4301211212331
511311432401
61142341005
7215330153
oct61454675
926412365
1012999101
117379465
12442a765
13290199b
141a253d3
15121b8bb
hexc659bd

12999101 has 8 divisors (see below), whose sum is σ = 13810680. Its totient is φ = 12192768.

The previous prime is 12999089. The next prime is 12999127. The reversal of 12999101 is 10199921.

12999101 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 225625 + 12773476 = 475^2 + 3574^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12999101 - 210 = 12998077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12999131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4595 + ... + 6863.

It is an arithmetic number, because the mean of its divisors is an integer number (1726335).

Almost surely, 212999101 is an apocalyptic number.

It is an amenable number.

12999101 is a deficient number, since it is larger than the sum of its proper divisors (811579).

12999101 is a wasteful number, since it uses less digits than its factorization.

12999101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2623.

The product of its (nonzero) digits is 1458, while the sum is 32.

The square root of 12999101 is about 3605.4266044395. The cubic root of 12999101 is about 235.1280485192.

The spelling of 12999101 in words is "twelve million, nine hundred ninety-nine thousand, one hundred one".

Divisors: 1 17 337 2269 5729 38573 764653 12999101