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123434053 = 263469331
BaseRepresentation
bin1110101101101…
…11010001000101
322121021002200121
413112313101011
5223044342203
620125341541
73026113021
oct726672105
9277232617
10123434053
1163747916
12354078b1
131c75a002
1412571381
15ac830bd
hex75b7445

123434053 has 4 divisors (see below), whose sum is σ = 123903648. Its totient is φ = 122964460.

The previous prime is 123434041. The next prime is 123434083. The reversal of 123434053 is 350434321.

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, and also an emirpimes, since its reverse is a distinct semiprime: 350434321 = 675230363.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-123434053 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 (123434083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 234403 + ... + 234928.

It is an arithmetic number, because the mean of its divisors is an integer number (30975912).

Almost surely, 2123434053 is an apocalyptic number.

It is an amenable number.

123434053 is a deficient number, since it is larger than the sum of its proper divisors (469595).

123434053 is an equidigital number, since it uses as much as digits as its factorization.

123434053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469594.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 123434053 is about 11110.0878934417. The cubic root of 123434053 is about 497.9032905759.

Adding to 123434053 its reverse (350434321), we get a palindrome (473868374).

The spelling of 123434053 in words is "one hundred twenty-three million, four hundred thirty-four thousand, fifty-three".

Divisors: 1 263 469331 123434053