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23782434 = 2313304903
BaseRepresentation
bin101101010111…
…0010000100010
31122202021100220
41122232100202
522042014214
62205423510
7406101354
oct132562042
948667326
1023782434
1112474105
127b6ab96
134c08c60
1432310d4
15214b9a9
hex16ae422

23782434 has 16 divisors (see below), whose sum is σ = 51223872. Its totient is φ = 7317648.

The previous prime is 23782417. The next prime is 23782457. The reversal of 23782434 is 43428732.

It is a junction number, because it is equal to n+sod(n) for n = 23782395 and 23782404.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152374 + ... + 152529.

It is an arithmetic number, because the mean of its divisors is an integer number (3201492).

Almost surely, 223782434 is an apocalyptic number.

23782434 is an abundant number, since it is smaller than the sum of its proper divisors (27441438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23782434 is a wasteful number, since it uses less digits than its factorization.

23782434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304921.

The product of its digits is 32256, while the sum is 33.

The square root of 23782434 is about 4876.7236952692. The cubic root of 23782434 is about 287.5756433600.

The spelling of 23782434 in words is "twenty-three million, seven hundred eighty-two thousand, four hundred thirty-four".

Divisors: 1 2 3 6 13 26 39 78 304903 609806 914709 1829418 3963739 7927478 11891217 23782434