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124114145 = 524822829
BaseRepresentation
bin1110110010111…
…01010011100001
322122112122121012
413121131103201
5223233123040
620152110305
73034644551
oct731352341
9278478535
10124114145
1164071881
1235695395
131c93772c
14126ab161
15ad69865
hex765d4e1

124114145 has 4 divisors (see below), whose sum is σ = 148936980. Its totient is φ = 99291312.

The previous prime is 124114139. The next prime is 124114147. The reversal of 124114145 is 541411421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 541411421 = 2323539627.

It can be written as a sum of positive squares in 2 ways, for example, as 40043584 + 84070561 = 6328^2 + 9169^2 .

It is a cyclic number.

It is not a de Polignac number, because 124114145 - 214 = 124097761 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 124114145.

It is not an unprimeable number, because it can be changed into a prime (124114147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12411410 + ... + 12411419.

It is an arithmetic number, because the mean of its divisors is an integer number (37234245).

Almost surely, 2124114145 is an apocalyptic number.

It is an amenable number.

124114145 is a deficient number, since it is larger than the sum of its proper divisors (24822835).

124114145 is an equidigital number, since it uses as much as digits as its factorization.

124114145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24822834.

The product of its digits is 640, while the sum is 23.

The square root of 124114145 is about 11140.6528085207. The cubic root of 124114145 is about 498.8160587791.

Adding to 124114145 its reverse (541411421), we get a palindrome (665525566).

The spelling of 124114145 in words is "one hundred twenty-four million, one hundred fourteen thousand, one hundred forty-five".

Divisors: 1 5 24822829 124114145