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22923380 = 2256717107
BaseRepresentation
bin101011101110…
…0100001110100
31121010121222002
41113130201310
521332022010
62135154432
7365563004
oct127344164
947117862
1022923380
1111a37747
127815a18
134997c3c
14308a004
15202c1a5
hex15dc874

22923380 has 24 divisors (see below), whose sum is σ = 48860448. Its totient is φ = 9031968.

The previous prime is 22923379. The next prime is 22923391. The reversal of 22923380 is 8332922.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 7214 + ... + 9893.

It is an arithmetic number, because the mean of its divisors is an integer number (2035852).

Almost surely, 222923380 is an apocalyptic number.

22923380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22923380 is an abundant number, since it is smaller than the sum of its proper divisors (25937068).

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

22923380 is a wasteful number, since it uses less digits than its factorization.

22923380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17183 (or 17181 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 22923380 is about 4787.8366722352. The cubic root of 22923380 is about 284.0705537862.

The spelling of 22923380 in words is "twenty-two million, nine hundred twenty-three thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 67 134 268 335 670 1340 17107 34214 68428 85535 171070 342140 1146169 2292338 4584676 5730845 11461690 22923380