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1244124025 = 5249764961
BaseRepresentation
bin100101000100111…
…1101001101111001
310012201001001022121
41022021331031321
510021443432100
6323241521241
742554610514
oct11211751571
93181031277
101244124025
11589303881
122a87a3221
1316a9a3181
14bb337d7b
157435451a
hex4a27d379

1244124025 has 6 divisors (see below), whose sum is σ = 1542713822. Its totient is φ = 995299200.

The previous prime is 1244124017. The next prime is 1244124043. The reversal of 1244124025 is 5204214421.

It can be written as a sum of positive squares in 3 ways, for example, as 1138489 + 1242985536 = 1067^2 + 35256^2 .

It is not a de Polignac number, because 1244124025 - 23 = 1244124017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 49764961 = 1244124025 / (1 + 2 + 4 + 4 + 1 + 2 + 4 + 0 + 2 + 5).

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24882456 + ... + 24882505.

Almost surely, 21244124025 is an apocalyptic number.

It is an amenable number.

1244124025 is a deficient number, since it is larger than the sum of its proper divisors (298589797).

1244124025 is an equidigital number, since it uses as much as digits as its factorization.

1244124025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49764971 (or 49764966 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 1244124025 is about 35272.1423364105. The cubic root of 1244124025 is about 1075.5267726556.

Adding to 1244124025 its reverse (5204214421), we get a palindrome (6448338446).

The spelling of 1244124025 in words is "one billion, two hundred forty-four million, one hundred twenty-four thousand, twenty-five".

Divisors: 1 5 25 49764961 248824805 1244124025