Search a number
-
+
124947 = 3213883
BaseRepresentation
bin11110100000010011
320100101200
4132200103
512444242
62402243
71030164
oct364023
9210350
10124947
1185969
1260383
1344b44
143376b
152704c
hex1e813

124947 has 6 divisors (see below), whose sum is σ = 180492. Its totient is φ = 83292.

The previous prime is 124919. The next prime is 124951. The reversal of 124947 is 749421.

It is a happy number.

124947 is nontrivially palindromic in base 13.

It is not a de Polignac number, because 124947 - 27 = 124819 is a prime.

It is a super-2 number, since 2×1249472 = 31223505618, which contains 22 as substring.

It is an Ulam number.

It is a d-powerful number, because it can be written as 1 + 2 + 95 + 42 + 48 + 73 .

It is a self number, because there is not a number n which added to its sum of digits gives 124947.

It is not an unprimeable number, because it can be changed into a prime (124907) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6933 + ... + 6950.

It is an arithmetic number, because the mean of its divisors is an integer number (30082).

2124947 is an apocalyptic number.

124947 is a deficient number, since it is larger than the sum of its proper divisors (55545).

124947 is a wasteful number, since it uses less digits than its factorization.

124947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13889 (or 13886 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 124947 is about 353.4784293277. The cubic root of 124947 is about 49.9929323343.

It can be divided in two parts, 1249 and 47, that added together give a 4-th power (1296 = 64).

The spelling of 124947 in words is "one hundred twenty-four thousand, nine hundred forty-seven".

Divisors: 1 3 9 13883 41649 124947