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124311413 = 1131100101
BaseRepresentation
bin1110110100011…
…01011101110101
322122220200012102
413122031131311
5223310431123
620200231445
73036425642
oct732153565
9278820172
10124311413
1164197006
123576b585
131c9a6465
141271cdc9
15ada8028
hex768d775

124311413 has 4 divisors (see below), whose sum is σ = 125411628. Its totient is φ = 123211200.

The previous prime is 124311401. The next prime is 124311437. The reversal of 124311413 is 314113421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24671089 + 99640324 = 4967^2 + 9982^2 .

It is a cyclic number.

It is not a de Polignac number, because 124311413 - 26 = 124311349 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 (124311443) 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, 549938 + ... + 550163.

It is an arithmetic number, because the mean of its divisors is an integer number (31352907).

Almost surely, 2124311413 is an apocalyptic number.

It is an amenable number.

124311413 is a deficient number, since it is larger than the sum of its proper divisors (1100215).

124311413 is a wasteful number, since it uses less digits than its factorization.

124311413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100214.

The product of its digits is 288, while the sum is 20.

The square root of 124311413 is about 11149.5028140272. The cubic root of 124311413 is about 499.0801929476.

Adding to 124311413 its reverse (314113421), we get a palindrome (438424834).

The spelling of 124311413 in words is "one hundred twenty-four million, three hundred eleven thousand, four hundred thirteen".

Divisors: 1 113 1100101 124311413