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23434523 = 729671723
BaseRepresentation
bin101100101100…
…1010100011011
31122002121010022
41121121110123
521444401043
62154141055
7403122140
oct131312433
948077108
1023434523
1112256782
127a2178b
134b167a8
1431803c7
1520cd868
hex165951b

23434523 has 16 divisors (see below), whose sum is σ = 28135680. Its totient is φ = 19093536.

The previous prime is 23434519. The next prime is 23434531. The reversal of 23434523 is 32543432.

It is not a de Polignac number, because 23434523 - 22 = 23434519 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23434492 and 23434501.

It is not an unprimeable number, because it can be changed into a prime (23434573) 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 15 ways as a sum of consecutive naturals, for example, 12740 + ... + 14462.

It is an arithmetic number, because the mean of its divisors is an integer number (1758480).

Almost surely, 223434523 is an apocalyptic number.

23434523 is a deficient number, since it is larger than the sum of its proper divisors (4701157).

23434523 is a wasteful number, since it uses less digits than its factorization.

23434523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1826.

The product of its digits is 8640, while the sum is 26.

The square root of 23434523 is about 4840.9217097573. The cubic root of 23434523 is about 286.1664434522.

Adding to 23434523 its reverse (32543432), we get a palindrome (55977955).

The spelling of 23434523 in words is "twenty-three million, four hundred thirty-four thousand, five hundred twenty-three".

Divisors: 1 7 29 67 203 469 1723 1943 12061 13601 49967 115441 349769 808087 3347789 23434523