Search a number
-
+
126827629 = 191664019
BaseRepresentation
bin1111000111100…
…11110001101101
322211122111210121
413203303301231
5224431441004
620330204541
73100005565
oct743636155
9284574717
10126827629
1165655525
1236583751
1320377846
1412bb5da5
15b203854
hex78f3c6d

126827629 has 4 divisors (see below), whose sum is σ = 127491840. Its totient is φ = 126163420.

The previous prime is 126827611. The next prime is 126827653. The reversal of 126827629 is 926728621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 126827629 - 29 = 126827117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126827609) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 331819 + ... + 332200.

It is an arithmetic number, because the mean of its divisors is an integer number (31872960).

Almost surely, 2126827629 is an apocalyptic number.

It is an amenable number.

126827629 is a deficient number, since it is larger than the sum of its proper divisors (664211).

126827629 is an equidigital number, since it uses as much as digits as its factorization.

126827629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664210.

The product of its digits is 145152, while the sum is 43.

The square root of 126827629 is about 11261.7773464050. Note that the first 3 decimals coincide. The cubic root of 126827629 is about 502.4250578402.

The spelling of 126827629 in words is "one hundred twenty-six million, eight hundred twenty-seven thousand, six hundred twenty-nine".

Divisors: 1 191 664019 126827629