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230312213012 = 22717483849187
BaseRepresentation
bin1101011001111110101…
…1010111101000010100
3211000110212001122121102
43112133223113220110
512233134411304022
6253445354005232
722432231336610
oct3263753275024
9730425048542
10230312213012
1189747270512
1238777116818
1318945299cab
14b20bb9c340
155ece6c0a92
hex359fad7a14

230312213012 has 24 divisors (see below), whose sum is σ = 487719981504. Its totient is φ = 92899043712.

The previous prime is 230312213003. The next prime is 230312213081. The reversal of 230312213012 is 210312213032.

It is a super-2 number, since 2×2303122130122 (a number of 24 digits) contains 22 as substring.

It is a congruent number.

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, 241924118 + ... + 241925069.

It is an arithmetic number, because the mean of its divisors is an integer number (20321665896).

Almost surely, 2230312213012 is an apocalyptic number.

It is an amenable number.

230312213012 is an abundant number, since it is smaller than the sum of its proper divisors (257407768492).

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

230312213012 is a wasteful number, since it uses less digits than its factorization.

230312213012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483849215 (or 483849213 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 230312213012 its sum of digits (20), we get a palindrome (230312213032).

Adding to 230312213012 its reverse (210312213032), we get a palindrome (440624426044).

The spelling of 230312213012 in words is "two hundred thirty billion, three hundred twelve million, two hundred thirteen thousand, twelve".

Divisors: 1 2 4 7 14 17 28 34 68 119 238 476 483849187 967698374 1935396748 3386944309 6773888618 8225436179 13547777236 16450872358 32901744716 57578053253 115156106506 230312213012