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126841801 = 314091671
BaseRepresentation
bin1111000111101…
…11001111001001
322211200020020111
413203313033021
5224432414201
620330354321
73100065112
oct743671711
9284606214
10126841801
1165665139
123658b9a1
1320381128
1412bbb209
15b207b51
hex78f73c9

126841801 has 4 divisors (see below), whose sum is σ = 130933504. Its totient is φ = 122750100.

The previous prime is 126841789. The next prime is 126841817. The reversal of 126841801 is 108148621.

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 126841801 - 29 = 126841289 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 4091671 = 126841801 / (1 + 2 + 6 + 8 + 4 + 1 + 8 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126841831) 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, 2045805 + ... + 2045866.

It is an arithmetic number, because the mean of its divisors is an integer number (32733376).

Almost surely, 2126841801 is an apocalyptic number.

It is an amenable number.

126841801 is a deficient number, since it is larger than the sum of its proper divisors (4091703).

126841801 is an equidigital number, since it uses as much as digits as its factorization.

126841801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4091702.

The product of its (nonzero) digits is 3072, while the sum is 31.

The square root of 126841801 is about 11262.4065367931. The cubic root of 126841801 is about 502.4437711726.

The spelling of 126841801 in words is "one hundred twenty-six million, eight hundred forty-one thousand, eight hundred one".

Divisors: 1 31 4091671 126841801