Search a number
-
+
126028801 = 997312637
BaseRepresentation
bin1111000001100…
…00110000000001
322210010221000101
413200300300001
5224230410201
620301122401
73060140623
oct740606001
9283127011
10126028801
116515a338
1236259401
1320158072
1412a48c13
15b0e6d01
hex7830c01

126028801 has 4 divisors (see below), whose sum is σ = 126051412. Its totient is φ = 126006192.

The previous prime is 126028759. The next prime is 126028849. The reversal of 126028801 is 108820621.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13690000 + 112338801 = 3700^2 + 10599^2 .

It is a cyclic number.

It is not a de Polignac number, because 126028801 - 215 = 125996033 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 126028801.

It is not an unprimeable number, because it can be changed into a prime (126028601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3655 + ... + 16291.

It is an arithmetic number, because the mean of its divisors is an integer number (31512853).

Almost surely, 2126028801 is an apocalyptic number.

It is an amenable number.

126028801 is a deficient number, since it is larger than the sum of its proper divisors (22611).

126028801 is an equidigital number, since it uses as much as digits as its factorization.

126028801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22610.

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 126028801 is about 11226.2549855239. The cubic root of 126028801 is about 501.3679884684.

The spelling of 126028801 in words is "one hundred twenty-six million, twenty-eight thousand, eight hundred one".

Divisors: 1 9973 12637 126028801