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22904934 = 23131032851
BaseRepresentation
bin101011101100…
…0000001100110
31121002200122220
41113120001212
521330424214
62134533210
7365455143
oct127300146
947080586
1022904934
1111a248a8
127807206
13498c720
1430833ca
1520269a9
hex15d8066

22904934 has 32 divisors (see below), whose sum is σ = 49830144. Its totient is φ = 6976800.

The previous prime is 22904927. The next prime is 22904971. The reversal of 22904934 is 43940922.

It is a junction number, because it is equal to n+sod(n) for n = 22904895 and 22904904.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 6609 + ... + 9459.

It is an arithmetic number, because the mean of its divisors is an integer number (1557192).

Almost surely, 222904934 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22904934, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24915072).

22904934 is an abundant number, since it is smaller than the sum of its proper divisors (26925210).

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

22904934 is a wasteful number, since it uses less digits than its factorization.

22904934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2972.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 22904934 is about 4785.9099448276. The cubic root of 22904934 is about 283.9943379814.

The spelling of 22904934 in words is "twenty-two million, nine hundred four thousand, nine hundred thirty-four".

Divisors: 1 2 3 6 13 26 39 78 103 206 309 618 1339 2678 2851 4017 5702 8034 8553 17106 37063 74126 111189 222378 293653 587306 880959 1761918 3817489 7634978 11452467 22904934