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9012274890 = 23513916313259
BaseRepresentation
bin10000110010010110…
…00110011011001010
3212021002011222222220
420121023012123022
5121424120244030
64050140154510
7436222033623
oct103113063312
925232158886
109012274890
113905215573
1218b6238a36
13b0818a448
14616ccca4a
1537b303a10
hex2192c66ca

9012274890 has 64 divisors (see below), whose sum is σ = 21920371200. Its totient is φ = 2371166784.

The previous prime is 9012274877. The next prime is 9012274913. The reversal of 9012274890 is 984722109.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 673081 + ... + 686339.

It is an arithmetic number, because the mean of its divisors is an integer number (342505800).

Almost surely, 29012274890 is an apocalyptic number.

9012274890 is an abundant number, since it is smaller than the sum of its proper divisors (12908096310).

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

9012274890 is a wasteful number, since it uses less digits than its factorization.

9012274890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13571.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 9012274890 is about 94933.0021120158. The cubic root of 9012274890 is about 2081.0290527202.

Adding to 9012274890 its reverse (984722109), we get a palindrome (9996996999).

The spelling of 9012274890 in words is "nine billion, twelve million, two hundred seventy-four thousand, eight hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 139 163 278 326 417 489 695 815 834 978 1390 1630 2085 2445 4170 4890 13259 22657 26518 39777 45314 66295 67971 79554 113285 132590 135942 198885 226570 339855 397770 679710 1843001 2161217 3686002 4322434 5529003 6483651 9215005 10806085 11058006 12967302 18430010 21612170 27645015 32418255 55290030 64836510 300409163 600818326 901227489 1502045815 1802454978 3004091630 4506137445 9012274890