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22743130 = 2543227233
BaseRepresentation
bin101011011000…
…0100001011010
31120210110201011
41112300201122
521310240010
62131244134
7364212334
oct126604132
946713634
1022743130
1111924283
12774964a
134933b97
143040454
151ee3a8a
hex15b085a

22743130 has 32 divisors (see below), whose sum is σ = 42254784. Its totient is φ = 8808576.

The previous prime is 22743109. The next prime is 22743137. The reversal of 22743130 is 3134722.

It is not an unprimeable number, because it can be changed into a prime (22743137) by changing a digit.

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, 97494 + ... + 97726.

It is an arithmetic number, because the mean of its divisors is an integer number (1320462).

Almost surely, 222743130 is an apocalyptic number.

22743130 is a deficient number, since it is larger than the sum of its proper divisors (19511654).

22743130 is a wasteful number, since it uses less digits than its factorization.

22743130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 22743130 is about 4768.9757810247. The cubic root of 22743130 is about 283.3240304520.

Adding to 22743130 its reverse (3134722), we get a palindrome (25877852).

The spelling of 22743130 in words is "twenty-two million, seven hundred forty-three thousand, one hundred thirty".

Divisors: 1 2 5 10 43 86 215 227 233 430 454 466 1135 1165 2270 2330 9761 10019 19522 20038 48805 50095 52891 97610 100190 105782 264455 528910 2274313 4548626 11371565 22743130