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124732126441 = 139594778957
BaseRepresentation
bin111010000101010011…
…1010011010011101001
3102220221210111112121201
41310022213103103221
54020422411021231
6133145014204201
712003656403256
oct1641247232351
9386853445551
10124732126441
114899804081a
1220210653661
13b9ba6b5ca0
1460739d842d
1533a0647161
hex1d0a9d34e9

124732126441 has 4 divisors (see below), whose sum is σ = 134326905412. Its totient is φ = 115137347472.

The previous prime is 124732126439. The next prime is 124732126469. The reversal of 124732126441 is 144621237421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 144621237421 = 178507131613.

It can be written as a sum of positive squares in 2 ways, for example, as 39838563216 + 84893563225 = 199596^2 + 291365^2 .

It is a cyclic number.

It is not a de Polignac number, because 124732126441 - 21 = 124732126439 is a prime.

It is a super-2 number, since 2×1247321264412 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 124732126441.

It is not an unprimeable number, because it can be changed into a prime (124732129441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4797389466 + ... + 4797389491.

It is an arithmetic number, because the mean of its divisors is an integer number (33581726353).

Almost surely, 2124732126441 is an apocalyptic number.

It is an amenable number.

124732126441 is a deficient number, since it is larger than the sum of its proper divisors (9594778971).

124732126441 is an equidigital number, since it uses as much as digits as its factorization.

124732126441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9594778970.

The product of its digits is 64512, while the sum is 37.

The spelling of 124732126441 in words is "one hundred twenty-four billion, seven hundred thirty-two million, one hundred twenty-six thousand, four hundred forty-one".

Divisors: 1 13 9594778957 124732126441