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124880001 = 341626667
BaseRepresentation
bin1110111000110…
…00010010000001
322200222120011020
413130120102001
5223432130001
620220340053
73044314431
oct734302201
9280876136
10124880001
1164545214
12359a4629
131cb451bc
141282a2c1
15ae6b736
hex7718481

124880001 has 4 divisors (see below), whose sum is σ = 166506672. Its totient is φ = 83253332.

The previous prime is 124879999. The next prime is 124880009. The reversal of 124880001 is 100088421.

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 124880001 - 21 = 124879999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (124880009) 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 3 ways as a sum of consecutive naturals, for example, 20813331 + ... + 20813336.

It is an arithmetic number, because the mean of its divisors is an integer number (41626668).

Almost surely, 2124880001 is an apocalyptic number.

It is an amenable number.

124880001 is a deficient number, since it is larger than the sum of its proper divisors (41626671).

124880001 is an equidigital number, since it uses as much as digits as its factorization.

124880001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41626670.

The product of its (nonzero) digits is 512, while the sum is 24.

The square root of 124880001 is about 11174.9720805020. The cubic root of 124880001 is about 499.8399501069.

The spelling of 124880001 in words is "one hundred twenty-four million, eight hundred eighty thousand, one".

Divisors: 1 3 41626667 124880001