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231330030212 = 221719179048011
BaseRepresentation
bin1101011101110001011…
…0000010001010000100
3211010002210021010022202
43113130112002022010
512242230441431322
6254134353214032
722466400545651
oct3273426021204
9733083233282
10231330030212
118a119853656
12389bbb61318
1318a78104ba8
14b2a7026c28
15603dc21292
hex35dc582284

231330030212 has 24 divisors (see below), whose sum is σ = 451200990240. Its totient is φ = 103131653760.

The previous prime is 231330030199. The next prime is 231330030233. The reversal of 231330030212 is 212030033132.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89522714 + ... + 89525297.

It is an arithmetic number, because the mean of its divisors is an integer number (18800041260).

Almost surely, 2231330030212 is an apocalyptic number.

It is an amenable number.

231330030212 is a deficient number, since it is larger than the sum of its proper divisors (219870960028).

231330030212 is a wasteful number, since it uses less digits than its factorization.

231330030212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179048051 (or 179048049 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 231330030212 its reverse (212030033132), we get a palindrome (443360063344).

The spelling of 231330030212 in words is "two hundred thirty-one billion, three hundred thirty million, thirty thousand, two hundred twelve".

Divisors: 1 2 4 17 19 34 38 68 76 323 646 1292 179048011 358096022 716192044 3043816187 3401912209 6087632374 6803824418 12175264748 13607648836 57832507553 115665015106 231330030212