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230522505 = 35181197431
BaseRepresentation
bin11011011110101…
…11111010001001
3121001202202102120
431233113322021
5433003210010
634512521453
75466260163
oct1557277211
9531682376
10230522505
1110913aa74
1265250289
13389b3065
1422889933
1515387e70
hexdbd7e89

230522505 has 32 divisors (see below), whose sum is σ = 373621248. Its totient is φ = 121363200.

The previous prime is 230522473. The next prime is 230522557. The reversal of 230522505 is 505225032.

It is not a de Polignac number, because 230522505 - 25 = 230522473 is a prime.

It is a super-2 number, since 2×2305225052 = 106281250622950050, which contains 22 as substring.

It is a zygodrome in base 14.

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, 534640 + ... + 535070.

It is an arithmetic number, because the mean of its divisors is an integer number (11675664).

Almost surely, 2230522505 is an apocalyptic number.

It is an amenable number.

230522505 is a deficient number, since it is larger than the sum of its proper divisors (143098743).

230522505 is a wasteful number, since it uses less digits than its factorization.

230522505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817.

The product of its (nonzero) digits is 3000, while the sum is 24.

The square root of 230522505 is about 15182.9675953023. The cubic root of 230522505 is about 613.1561802941.

Adding to 230522505 its reverse (505225032), we get a palindrome (735747537).

The spelling of 230522505 in words is "two hundred thirty million, five hundred twenty-two thousand, five hundred five".

Divisors: 1 3 5 15 181 197 431 543 591 905 985 1293 2155 2715 2955 6465 35657 78011 84907 106971 178285 234033 254721 390055 424535 534855 1170165 1273605 15368167 46104501 76840835 230522505