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124164145 = 5719231317
BaseRepresentation
bin1110110011010…
…01100000110001
322122122012012001
413121221200301
5223241223040
620153134001
73035243410
oct731514061
9278565161
10124164145
11640a63a6
12356ba301
131c954411
14126c1477
15ad7959a
hex7669831

124164145 has 48 divisors (see below), whose sum is σ = 186098688. Its totient is φ = 77811840.

The previous prime is 124164137. The next prime is 124164149. The reversal of 124164145 is 541461421.

124164145 = 2672 + 2682 + ... + 7312.

It is not a de Polignac number, because 124164145 - 23 = 124164137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124164149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 391527 + ... + 391843.

It is an arithmetic number, because the mean of its divisors is an integer number (3877056).

Almost surely, 2124164145 is an apocalyptic number.

It is an amenable number.

124164145 is a deficient number, since it is larger than the sum of its proper divisors (61934543).

124164145 is a wasteful number, since it uses less digits than its factorization.

124164145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398 (or 379 counting only the distinct ones).

The product of its digits is 3840, while the sum is 28.

The square root of 124164145 is about 11142.8966162304. The cubic root of 124164145 is about 498.8830332955.

It can be divided in two parts, 12416 and 4145, that added together give a palindrome (16561).

The spelling of 124164145 in words is "one hundred twenty-four million, one hundred sixty-four thousand, one hundred forty-five".

Divisors: 1 5 7 19 31 35 95 133 155 217 317 361 589 665 1085 1585 1805 2219 2527 2945 4123 6023 9827 11095 11191 12635 20615 30115 42161 49135 55955 68789 78337 114437 186713 210805 343945 391685 572185 801059 933565 1306991 3547547 4005295 6534955 17737735 24832829 124164145