Search a number
-
+
12970899 = 3210911321
BaseRepresentation
bin110001011110…
…101110010011
3220101222201200
4301132232103
511310032044
61142002243
7215152014
oct61365623
926358650
1012970899
11735a257
124416383
1328c1bb6
141a1900b
151213369
hexc5eb93

12970899 has 12 divisors (see below), whose sum is σ = 18767112. Its totient is φ = 8632800.

The previous prime is 12970889. The next prime is 12970913. The reversal of 12970899 is 99807921.

It is not a de Polignac number, because 12970899 - 212 = 12966803 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12970819) 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, 9159 + ... + 10479.

It is an arithmetic number, because the mean of its divisors is an integer number (1563926).

Almost surely, 212970899 is an apocalyptic number.

12970899 is a deficient number, since it is larger than the sum of its proper divisors (5796213).

12970899 is a wasteful number, since it uses less digits than its factorization.

12970899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2418 (or 2415 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 45.

The square root of 12970899 is about 3601.5134318783. The cubic root of 12970899 is about 234.9578859194.

The spelling of 12970899 in words is "twelve million, nine hundred seventy thousand, eight hundred ninety-nine".

Divisors: 1 3 9 1091 1321 3273 3963 9819 11889 1441211 4323633 12970899