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1249372041 = 31740161091
BaseRepresentation
bin100101001110111…
…1110011110001001
310020001220200020120
41022131332132021
510024314401131
6323550213453
742650326041
oct11235763611
93201820216
101249372041
11591268785
122aa4b4289
1316babcac8
14bbd02721
1574a3e496
hex4a77e789

1249372041 has 16 divisors (see below), whose sum is σ = 1768246848. Its totient is φ = 781952000.

The previous prime is 1249372039. The next prime is 1249372057. The reversal of 1249372041 is 1402739421.

It is a cyclic number.

It is not a de Polignac number, because 1249372041 - 21 = 1249372039 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 1249371993 and 1249372011.

It is not an unprimeable number, because it can be changed into a prime (1249372841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10095 + ... + 50996.

It is an arithmetic number, because the mean of its divisors is an integer number (110515428).

Almost surely, 21249372041 is an apocalyptic number.

It is an amenable number.

1249372041 is a deficient number, since it is larger than the sum of its proper divisors (518874807).

1249372041 is a wasteful number, since it uses less digits than its factorization.

1249372041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61512.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 1249372041 is about 35346.4572623622. The cubic root of 1249372041 is about 1077.0369285803.

The spelling of 1249372041 in words is "one billion, two hundred forty-nine million, three hundred seventy-two thousand, forty-one".

Divisors: 1 3 17 51 401 1203 6817 20451 61091 183273 1038547 3115641 24497491 73492473 416457347 1249372041