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23130434 = 213983203
BaseRepresentation
bin101100000111…
…1000101000010
31121112010222202
41120033011002
521410133214
62143433202
7400414445
oct130170502
947463882
1023130434
1112069268
1278b5802
134a3b262
14310165c
15206d6de
hex160f142

23130434 has 8 divisors (see below), whose sum is σ = 34945680. Its totient is φ = 11481876.

The previous prime is 23130409. The next prime is 23130449. The reversal of 23130434 is 43403132.

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41324 + ... + 41879.

It is an arithmetic number, because the mean of its divisors is an integer number (4368210).

Almost surely, 223130434 is an apocalyptic number.

23130434 is a deficient number, since it is larger than the sum of its proper divisors (11815246).

23130434 is a wasteful number, since it uses less digits than its factorization.

23130434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83344.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 23130434 is about 4809.4109826464. The cubic root of 23130434 is about 284.9232747195.

Adding to 23130434 its reverse (43403132), we get a palindrome (66533566).

The spelling of 23130434 in words is "twenty-three million, one hundred thirty thousand, four hundred thirty-four".

Divisors: 1 2 139 278 83203 166406 11565217 23130434