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126505041 = 31317190807
BaseRepresentation
bin1111000101001…
…01000001010001
322211001010021220
413202211001101
5224341130131
620315235253
73064163235
oct742450121
9284033256
10126505041
1165455123
1236448b29
1320293a70
1412b305c5
15b18ce96
hex78a5051

126505041 has 16 divisors (see below), whose sum is σ = 192334464. Its totient is φ = 73269504.

The previous prime is 126505019. The next prime is 126505061. The reversal of 126505041 is 140505621.

It is not a de Polignac number, because 126505041 - 25 = 126505009 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (126505061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94741 + ... + 96066.

It is an arithmetic number, because the mean of its divisors is an integer number (12020904).

Almost surely, 2126505041 is an apocalyptic number.

It is an amenable number.

126505041 is a deficient number, since it is larger than the sum of its proper divisors (65829423).

126505041 is a wasteful number, since it uses less digits than its factorization.

126505041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190840.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 126505041 is about 11247.4459767540. The cubic root of 126505041 is about 501.9987209165.

The spelling of 126505041 in words is "one hundred twenty-six million, five hundred five thousand, forty-one".

Divisors: 1 3 13 17 39 51 221 663 190807 572421 2480491 3243719 7441473 9731157 42168347 126505041