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124678405241 = 139590646557
BaseRepresentation
bin111010000011101101…
…0010111110001111001
3102220211001102012222122
41310013122113301321
54020320132431431
6133135414531025
712002434646555
oct1640732276171
9386731365878
10124678405241
114896a789235
12201b6666a75
13b9ac526bb0
14606a812865
15339aa84a7b
hex1d07697c79

124678405241 has 4 divisors (see below), whose sum is σ = 134269051812. Its totient is φ = 115087758672.

The previous prime is 124678405211. The next prime is 124678405261. The reversal of 124678405241 is 142504876421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 142504876421 = 206968876209.

It can be written as a sum of positive squares in 2 ways, for example, as 49055605225 + 75622800016 = 221485^2 + 274996^2 .

It is a cyclic number.

It is not a de Polignac number, because 124678405241 - 26 = 124678405177 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 124678405192 and 124678405201.

It is not an unprimeable number, because it can be changed into a prime (124678405211) 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, 4795323266 + ... + 4795323291.

It is an arithmetic number, because the mean of its divisors is an integer number (33567262953).

Almost surely, 2124678405241 is an apocalyptic number.

It is an amenable number.

124678405241 is a deficient number, since it is larger than the sum of its proper divisors (9590646571).

124678405241 is an equidigital number, since it uses as much as digits as its factorization.

124678405241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9590646570.

The product of its (nonzero) digits is 430080, while the sum is 44.

The spelling of 124678405241 in words is "one hundred twenty-four billion, six hundred seventy-eight million, four hundred five thousand, two hundred forty-one".

Divisors: 1 13 9590646557 124678405241