Search a number
-
+
12270153 = 375571049
BaseRepresentation
bin101110110011…
…101001001001
3212002101111010
4232303221021
511120121103
61114554133
7206203020
oct56635111
925071433
1012270153
116a20825
124138949
132707c5c
1418b58b7
151125903
hexbb3a49

12270153 has 16 divisors (see below), whose sum is σ = 18748800. Its totient is φ = 6992256.

The previous prime is 12270133. The next prime is 12270157. The reversal of 12270153 is 35107221.

It is not a de Polignac number, because 12270153 - 213 = 12261961 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (12270157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11173 + ... + 12221.

It is an arithmetic number, because the mean of its divisors is an integer number (1171800).

Almost surely, 212270153 is an apocalyptic number.

It is an amenable number.

12270153 is a deficient number, since it is larger than the sum of its proper divisors (6478647).

12270153 is a wasteful number, since it uses less digits than its factorization.

12270153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1616.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 12270153 is about 3502.8778168814. The cubic root of 12270153 is about 230.6481591155.

Adding to 12270153 its reverse (35107221), we get a palindrome (47377374).

The spelling of 12270153 in words is "twelve million, two hundred seventy thousand, one hundred fifty-three".

Divisors: 1 3 7 21 557 1049 1671 3147 3899 7343 11697 22029 584293 1752879 4090051 12270153