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121024001 = 717289143
BaseRepresentation
bin1110011011010…
…10111000000001
322102201122201102
413031222320001
5221440232001
620001544145
72666454440
oct715527001
9272648642
10121024001
116235113a
1234645055
131c0c5047
1412104d57
15a958e6b
hex736ae01

121024001 has 4 divisors (see below), whose sum is σ = 138313152. Its totient is φ = 103734852.

The previous prime is 121023997. The next prime is 121024009. The reversal of 121024001 is 100420121.

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 121024001 - 22 = 121023997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121024009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8644565 + ... + 8644578.

It is an arithmetic number, because the mean of its divisors is an integer number (34578288).

Almost surely, 2121024001 is an apocalyptic number.

It is an amenable number.

121024001 is a deficient number, since it is larger than the sum of its proper divisors (17289151).

121024001 is an equidigital number, since it uses as much as digits as its factorization.

121024001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17289150.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 121024001 is about 11001.0909004516. The cubic root of 121024001 is about 494.6414449300.

Adding to 121024001 its reverse (100420121), we get a palindrome (221444122).

The spelling of 121024001 in words is "one hundred twenty-one million, twenty-four thousand, one".

Divisors: 1 7 17289143 121024001