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212133031470 = 232526968312829
BaseRepresentation
bin1100010110010000011…
…1010010111000101110
3202021112220201112201100
43011210013102320232
511433422024001340
6241241431023530
721216566005413
oct3054407227056
9667486645640
10212133031470
1181a68625338
1235142b0aba6
1317008bc1239
14a3a564c10a
1557b8721830
hex31641d2e2e

212133031470 has 96 divisors (see below), whose sum is σ = 554449989600. Its totient is φ = 56271612672.

The previous prime is 212133031469. The next prime is 212133031471. The reversal of 212133031470 is 74130331212.

It is a happy number.

212133031470 is a `hidden beast` number, since 2 + 1 + 213 + 303 + 147 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (212133031469) and next prime (212133031471).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212133031471) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16529016 + ... + 16541844.

It is an arithmetic number, because the mean of its divisors is an integer number (5775520725).

Almost surely, 2212133031470 is an apocalyptic number.

212133031470 is an abundant number, since it is smaller than the sum of its proper divisors (342316958130).

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

212133031470 is a wasteful number, since it uses less digits than its factorization.

212133031470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13794 (or 13791 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

Adding to 212133031470 its reverse (74130331212), we get a palindrome (286263362682).

The spelling of 212133031470 in words is "two hundred twelve billion, one hundred thirty-three million, thirty-one thousand, four hundred seventy".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 269 538 683 807 1345 1366 1614 2049 2421 2690 3415 4035 4098 4842 6147 6830 8070 10245 12105 12294 12829 20490 24210 25658 30735 38487 61470 64145 76974 115461 128290 183727 192435 230922 367454 384870 551181 577305 918635 1102362 1154610 1653543 1837270 2755905 3307086 3451001 5511810 6902002 8267715 8762207 10353003 16535430 17255005 17524414 20706006 26286621 31059009 34510010 43811035 51765015 52573242 62118018 78859863 87622070 103530030 131433105 155295045 157719726 262866210 310590090 394299315 788598630 2357033683 4714067366 7071101049 11785168415 14142202098 21213303147 23570336830 35355505245 42426606294 70711010490 106066515735 212133031470