Search a number
-
+
312000230212 = 2211192912869173
BaseRepresentation
bin1001000101001001010…
…10011011001101000100
31002211022211110212212221
410202210222123031010
520102434024331322
6355155251422124
731353441125266
oct4424452331504
91084284425787
10312000230212
11110355aa5930
12505742b4944
1323563044148
141115abbdb36
1581b0e779c7
hex48a4a9b344

312000230212 has 48 divisors (see below), whose sum is σ = 648606369600. Its totient is φ = 129721253760.

The previous prime is 312000230207. The next prime is 312000230219. The reversal of 312000230212 is 212032000213.

It is not an unprimeable number, because it can be changed into a prime (312000230219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6410343 + ... + 6458830.

It is an arithmetic number, because the mean of its divisors is an integer number (13512632700).

Almost surely, 2312000230212 is an apocalyptic number.

It is an amenable number.

312000230212 is an abundant number, since it is smaller than the sum of its proper divisors (336606139388).

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

312000230212 is a wasteful number, since it uses less digits than its factorization.

312000230212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12869236 (or 12869234 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 312000230212 its reverse (212032000213), we get a palindrome (524032230425).

The spelling of 312000230212 in words is "three hundred twelve billion, two hundred thirty thousand, two hundred twelve".

Divisors: 1 2 4 11 19 22 29 38 44 58 76 116 209 319 418 551 638 836 1102 1276 2204 6061 12122 24244 12869173 25738346 51476692 141560903 244514287 283121806 373206017 489028574 566243612 746412034 978057148 1492824068 2689657157 4105266187 5379314314 7090914323 8210532374 10758628628 14181828646 16421064748 28363657292 78000057553 156000115106 312000230212