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124328161 = 143986399
BaseRepresentation
bin1110110100100…
…01100011100001
322122221112011201
413122101203201
5223312000121
620200441201
73036525526
oct732214341
9278845151
10124328161
11641a8651
1235779201
131c9b0c79
141272514d
15adace91
hex76918e1

124328161 has 4 divisors (see below), whose sum is σ = 124416000. Its totient is φ = 124240324.

The previous prime is 124328147. The next prime is 124328173. The reversal of 124328161 is 161823421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 124328161 - 27 = 124328033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124328111) 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 3 ways as a sum of consecutive naturals, for example, 41761 + ... + 44638.

It is an arithmetic number, because the mean of its divisors is an integer number (31104000).

Almost surely, 2124328161 is an apocalyptic number.

It is an amenable number.

124328161 is a deficient number, since it is larger than the sum of its proper divisors (87839).

124328161 is an equidigital number, since it uses as much as digits as its factorization.

124328161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87838.

The product of its digits is 2304, while the sum is 28.

The square root of 124328161 is about 11150.2538536125. The cubic root of 124328161 is about 499.1026049947.

The spelling of 124328161 in words is "one hundred twenty-four million, three hundred twenty-eight thousand, one hundred sixty-one".

Divisors: 1 1439 86399 124328161