Search a number
-
+
12996830 = 2571116879
BaseRepresentation
bin110001100101…
…000011011110
3220110022022002
4301211003132
511311344310
61142322302
7215320430
oct61450336
926408262
1012996830
117377790
124429392
132900942
141a24650
15121ada5
hexc650de

12996830 has 32 divisors (see below), whose sum is σ = 29168640. Its totient is φ = 4050720.

The previous prime is 12996827. The next prime is 12996839. The reversal of 12996830 is 3869921.

12996830 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12996839) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7670 + ... + 9209.

It is an arithmetic number, because the mean of its divisors is an integer number (911520).

Almost surely, 212996830 is an apocalyptic number.

12996830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12996830 is an abundant number, since it is smaller than the sum of its proper divisors (16171810).

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

12996830 is a wasteful number, since it uses less digits than its factorization.

12996830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16904.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 12996830 is about 3605.1116487565. Note that the first 3 decimals coincide. The cubic root of 12996830 is about 235.1143550877.

The spelling of 12996830 in words is "twelve million, nine hundred ninety-six thousand, eight hundred thirty".

Divisors: 1 2 5 7 10 11 14 22 35 55 70 77 110 154 385 770 16879 33758 84395 118153 168790 185669 236306 371338 590765 928345 1181530 1299683 1856690 2599366 6498415 12996830