Search a number
-
+
124411405 = 5533171481
BaseRepresentation
bin1110110101001…
…01111000001101
322200002202100211
413122211320031
5223322131110
620202322421
73040323316
oct732457015
9280082324
10124411405
1164255148
12357b9411
131ca0cb21
141274760d
15adc798a
hex76a5e0d

124411405 has 16 divisors (see below), whose sum is σ = 152693424. Its totient is φ = 97277440.

The previous prime is 124411403. The next prime is 124411433. The reversal of 124411405 is 504114421.

It can be written as a sum of positive squares in 8 ways, for example, as 8590761 + 115820644 = 2931^2 + 10762^2 .

It is not a de Polignac number, because 124411405 - 21 = 124411403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124411403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83265 + ... + 84745.

It is an arithmetic number, because the mean of its divisors is an integer number (9543339).

Almost surely, 2124411405 is an apocalyptic number.

It is an amenable number.

124411405 is a deficient number, since it is larger than the sum of its proper divisors (28282019).

124411405 is a wasteful number, since it uses less digits than its factorization.

124411405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1856.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 124411405 is about 11153.9860588043. The cubic root of 124411405 is about 499.2139716330.

Adding to 124411405 its reverse (504114421), we get a palindrome (628525826).

The spelling of 124411405 in words is "one hundred twenty-four million, four hundred eleven thousand, four hundred five".

Divisors: 1 5 53 265 317 1481 1585 7405 16801 78493 84005 392465 469477 2347385 24882281 124411405