Search a number
-
+
123227429 = 1327973389
BaseRepresentation
bin1110101100001…
…00110100100101
322120212121020212
413112010310211
5223021234204
620121105205
73024262433
oct726046445
9276777225
10123227429
1163616656
1235328205
131c6b6c50
1412519d53
15ac41c6e
hex7584d25

123227429 has 8 divisors (see below), whose sum is σ = 132793080. Its totient is φ = 113674176.

The previous prime is 123227417. The next prime is 123227437. The reversal of 123227429 is 924722321.

It can be written as a sum of positive squares in 4 ways, for example, as 42640900 + 80586529 = 6530^2 + 8977^2 .

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 123227429 - 216 = 123161893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123227395 and 123227404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123227479) 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 7 ways as a sum of consecutive naturals, for example, 34667 + ... + 38055.

It is an arithmetic number, because the mean of its divisors is an integer number (16599135).

Almost surely, 2123227429 is an apocalyptic number.

It is an amenable number.

123227429 is a deficient number, since it is larger than the sum of its proper divisors (9565651).

123227429 is a wasteful number, since it uses less digits than its factorization.

123227429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6199.

The product of its digits is 12096, while the sum is 32.

The square root of 123227429 is about 11100.7850623278. The cubic root of 123227429 is about 497.6253115646.

The spelling of 123227429 in words is "one hundred twenty-three million, two hundred twenty-seven thousand, four hundred twenty-nine".

Divisors: 1 13 2797 3389 36361 44057 9479033 123227429