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124313221 = 1132394603
BaseRepresentation
bin1110110100011…
…01111010000101
322122220202200101
413122031322011
5223311010341
620200244101
73036434134
oct732157205
9278822611
10124313221
11641983aa
1235770631
131c9a7226
141271d91b
15ada8831
hex768de85

124313221 has 8 divisors (see below), whose sum is σ = 125965440. Its totient is φ = 122670912.

The previous prime is 124313209. The next prime is 124313243. The reversal of 124313221 is 122313421.

It is a happy number.

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 124313221 - 27 = 124313093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124313251) 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, 24706 + ... + 29308.

It is an arithmetic number, because the mean of its divisors is an integer number (15745680).

Almost surely, 2124313221 is an apocalyptic number.

It is an amenable number.

124313221 is a deficient number, since it is larger than the sum of its proper divisors (1652219).

124313221 is a wasteful number, since it uses less digits than its factorization.

124313221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4955.

The product of its digits is 288, while the sum is 19.

The square root of 124313221 is about 11149.5838935810. The cubic root of 124313221 is about 499.0826124964.

Adding to 124313221 its reverse (122313421), we get a palindrome (246626642).

The spelling of 124313221 in words is "one hundred twenty-four million, three hundred thirteen thousand, two hundred twenty-one".

Divisors: 1 113 239 4603 27007 520139 1100117 124313221