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124442000141 = 149835181209
BaseRepresentation
bin111001111100101010…
…0100011101100001101
3102220012120120121011012
41303321110203230031
54014324123001031
6133100131535005
711663534356064
oct1637124435415
9386176517135
10124442000141
11488592a0618
122014b45a465
13b972564414
1460472751db
153384e38b2b
hex1cf9523b0d

124442000141 has 4 divisors (see below), whose sum is σ = 125277181500. Its totient is φ = 123606818784.

The previous prime is 124442000131. The next prime is 124442000143. The reversal of 124442000141 is 141000244421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 64500760900 + 59941239241 = 253970^2 + 244829^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-124442000141 is a prime.

It is a super-2 number, since 2×1244420001412 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124442000143) 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, 417590456 + ... + 417590753.

It is an arithmetic number, because the mean of its divisors is an integer number (31319295375).

Almost surely, 2124442000141 is an apocalyptic number.

It is an amenable number.

124442000141 is a deficient number, since it is larger than the sum of its proper divisors (835181359).

124442000141 is an equidigital number, since it uses as much as digits as its factorization.

124442000141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 835181358.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 124442000141 its reverse (141000244421), we get a palindrome (265442244562).

The spelling of 124442000141 in words is "one hundred twenty-four billion, four hundred forty-two million, one hundred forty-one", and thus it is an aban number.

Divisors: 1 149 835181209 124442000141