Search a number
-
+
124881065 = 5171469189
BaseRepresentation
bin1110111000110…
…00100010101001
322200222121121122
413130120202221
5223432143230
620220345025
73044320511
oct734304251
9280877548
10124881065
1164545aa1
12359a5175
131cb4582a
141282a841
15ae6bbe5
hex77188a9

124881065 has 8 divisors (see below), whose sum is σ = 158672520. Its totient is φ = 94028032.

The previous prime is 124881061. The next prime is 124881083. The reversal of 124881065 is 560188421.

It can be written as a sum of positive squares in 4 ways, for example, as 33085504 + 91795561 = 5752^2 + 9581^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 124881065 - 22 = 124881061 is a prime.

It is not an unprimeable number, because it can be changed into a prime (124881061) 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 7 ways as a sum of consecutive naturals, for example, 734510 + ... + 734679.

It is an arithmetic number, because the mean of its divisors is an integer number (19834065).

Almost surely, 2124881065 is an apocalyptic number.

It is an amenable number.

124881065 is a deficient number, since it is larger than the sum of its proper divisors (33791455).

124881065 is a wasteful number, since it uses less digits than its factorization.

124881065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1469211.

The product of its (nonzero) digits is 15360, while the sum is 35.

The square root of 124881065 is about 11175.0196867836. The cubic root of 124881065 is about 499.8413696782.

The spelling of 124881065 in words is "one hundred twenty-four million, eight hundred eighty-one thousand, sixty-five".

Divisors: 1 5 17 85 1469189 7345945 24976213 124881065