Search a number
-
+
212848929 = 3289265729
BaseRepresentation
bin11001010111111…
…01000100100001
3112211111211211200
430223331010201
5413442131204
633042031413
75163120546
oct1453750441
9484454750
10212848929
11aa169607
125b348569
1335135817
14203a8bcd
1513a46539
hexcafd121

212848929 has 12 divisors (see below), whose sum is σ = 310904100. Its totient is φ = 140304384.

The previous prime is 212848927. The next prime is 212848939. The reversal of 212848929 is 929848212.

It is a happy number.

212848929 is digitally balanced in base 2, 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 2 ways, for example, as 47983329 + 164865600 = 6927^2 + 12840^2 .

It is not a de Polignac number, because 212848929 - 21 = 212848927 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212848927) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 132064 + ... + 133665.

It is an arithmetic number, because the mean of its divisors is an integer number (25908675).

Almost surely, 2212848929 is an apocalyptic number.

It is an amenable number.

212848929 is a deficient number, since it is larger than the sum of its proper divisors (98055171).

212848929 is a wasteful number, since it uses less digits than its factorization.

212848929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265824 (or 265821 counting only the distinct ones).

The product of its digits is 165888, while the sum is 45.

The square root of 212848929 is about 14589.3429941173. The cubic root of 212848929 is about 597.0680376655.

The spelling of 212848929 in words is "two hundred twelve million, eight hundred forty-eight thousand, nine hundred twenty-nine".

Divisors: 1 3 9 89 267 801 265729 797187 2391561 23649881 70949643 212848929