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924012149 = 1974690417
BaseRepresentation
bin110111000100110…
…100111001110101
32101101200200101012
4313010310321311
53343021342044
6231404442005
731616654654
oct6704647165
92341620335
10924012149
11434643005
12219549305
13119583068
148aa0b19b
15561c159e
hex37134e75

924012149 has 4 divisors (see below), whose sum is σ = 928702764. Its totient is φ = 919321536.

The previous prime is 924012139. The next prime is 924012197. The reversal of 924012149 is 941210429.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 941210429 = 1949537391.

It can be written as a sum of positive squares in 2 ways, for example, as 470109124 + 453903025 = 21682^2 + 21305^2 .

It is a cyclic number.

It is not a de Polignac number, because 924012149 - 216 = 923946613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (924012109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2345012 + ... + 2345405.

It is an arithmetic number, because the mean of its divisors is an integer number (232175691).

Almost surely, 2924012149 is an apocalyptic number.

It is an amenable number.

924012149 is a deficient number, since it is larger than the sum of its proper divisors (4690615).

924012149 is a wasteful number, since it uses less digits than its factorization.

924012149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4690614.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 924012149 is about 30397.5681428630. The cubic root of 924012149 is about 974.0006061075. Note that the first 3 decimals are identical.

The spelling of 924012149 in words is "nine hundred twenty-four million, twelve thousand, one hundred forty-nine".

Divisors: 1 197 4690417 924012149