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122441421 = 3137297911
BaseRepresentation
bin1110100110001…
…00111011001101
322112101200001110
413103010323031
5222321111141
620052202233
73014510034
oct723047315
9275350043
10122441421
116312a063
1235009379
131c4a025b
141239371b
15ab38e16
hex74c4ecd

122441421 has 8 divisors (see below), whose sum is σ = 164447424. Its totient is φ = 81031520.

The previous prime is 122441419. The next prime is 122441441. The reversal of 122441421 is 124144221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122441421 - 21 = 122441419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122441441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148545 + ... + 149366.

It is an arithmetic number, because the mean of its divisors is an integer number (20555928).

Almost surely, 2122441421 is an apocalyptic number.

It is an amenable number.

122441421 is a deficient number, since it is larger than the sum of its proper divisors (42006003).

122441421 is a wasteful number, since it uses less digits than its factorization.

122441421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298051.

The product of its digits is 512, while the sum is 21.

The square root of 122441421 is about 11065.3251646755. The cubic root of 122441421 is about 496.5650171587.

Adding to 122441421 its reverse (124144221), we get a palindrome (246585642).

The spelling of 122441421 in words is "one hundred twenty-two million, four hundred forty-one thousand, four hundred twenty-one".

Divisors: 1 3 137 411 297911 893733 40813807 122441421