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22934389 = 293197263
BaseRepresentation
bin101011101111…
…1001101110101
31121011012001211
41113133031311
521332400024
62135321421
7365640052
oct127371565
947135054
1022934389
1111a44a45
127820271
13499cc5a
143090029
152030594
hex15df375

22934389 has 16 divisors (see below), whose sum is σ = 24837120. Its totient is φ = 21127680.

The previous prime is 22934347. The next prime is 22934399. The reversal of 22934389 is 98343922.

It is a cyclic number.

It is not a de Polignac number, because 22934389 - 217 = 22803317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22934399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87072 + ... + 87334.

It is an arithmetic number, because the mean of its divisors is an integer number (1552320).

Almost surely, 222934389 is an apocalyptic number.

22934389 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

22934389 is a deficient number, since it is larger than the sum of its proper divisors (1902731).

22934389 is a wasteful number, since it uses less digits than its factorization.

22934389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420.

The product of its digits is 93312, while the sum is 40.

The square root of 22934389 is about 4788.9862183974. The cubic root of 22934389 is about 284.1160216626.

The spelling of 22934389 in words is "twenty-two million, nine hundred thirty-four thousand, three hundred eighty-nine".

Divisors: 1 29 31 97 263 899 2813 3007 7627 8153 25511 87203 236437 739819 790841 22934389