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1250500061 = 6140915011
BaseRepresentation
bin100101010001001…
…0001110111011101
310020011000222121002
41022202101313131
510030112000221
6324030320045
742663034526
oct11242216735
93204028532
101250500061
11591969228
122aa959025
1316c0c6385
14bc11784d
1574bb380b
hex4a891ddd

1250500061 has 8 divisors (see below), whose sum is σ = 1271564448. Its totient is φ = 1229454000.

The previous prime is 1250500057. The next prime is 1250500081. The reversal of 1250500061 is 1600050521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1250500061 - 22 = 1250500057 is a prime.

It is a super-2 number, since 2×12505000612 = 3127500805122007442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1250500051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247046 + ... + 252056.

It is an arithmetic number, because the mean of its divisors is an integer number (158945556).

Almost surely, 21250500061 is an apocalyptic number.

It is an amenable number.

1250500061 is a deficient number, since it is larger than the sum of its proper divisors (21064387).

1250500061 is an equidigital number, since it uses as much as digits as its factorization.

1250500061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9163.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 1250500061 is about 35362.4102826716. The cubic root of 1250500061 is about 1077.3609723671.

Adding to 1250500061 its reverse (1600050521), we get a palindrome (2850550582).

The spelling of 1250500061 in words is "one billion, two hundred fifty million, five hundred thousand, sixty-one".

Divisors: 1 61 4091 5011 249551 305671 20500001 1250500061