Search a number
-
+
149214869 = 239676709
BaseRepresentation
bin10001110010011…
…01011010010101
3101101202220022122
420321031122111
5301144333434
622450105325
73461206526
oct1071153225
9341686278
10149214869
1177256381
1241b7b245
1324bb572b
1415b6284d
15d176c2e
hex8e4d695

149214869 has 8 divisors (see below), whose sum is σ = 155886720. Its totient is φ = 142558416.

The previous prime is 149214851. The next prime is 149214883. The reversal of 149214869 is 968412941.

149214869 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 149214869 - 224 = 132437653 is a prime.

It is a super-2 number, since 2×1492148692 = 44530154261374322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149214839) 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, 18887 + ... + 25595.

It is an arithmetic number, because the mean of its divisors is an integer number (19485840).

Almost surely, 2149214869 is an apocalyptic number.

It is an amenable number.

149214869 is a deficient number, since it is larger than the sum of its proper divisors (6671851).

149214869 is an equidigital number, since it uses as much as digits as its factorization.

149214869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7699.

The product of its digits is 124416, while the sum is 44.

The square root of 149214869 is about 12215.3538221371. The cubic root of 149214869 is about 530.4006333564.

It can be divided in two parts, 1492 and 14869, that added together give a palindrome (16361).

The spelling of 149214869 in words is "one hundred forty-nine million, two hundred fourteen thousand, eight hundred sixty-nine".

Divisors: 1 23 967 6709 22241 154307 6487603 149214869