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212011333040 = 24513792580469
BaseRepresentation
bin1100010101110011011…
…1000011010110110000
3202021020102201121212002
43011130313003112300
511433144400124130
6241221402353132
721213560411453
oct3053467032660
9667212647762
10212011333040
1181a05963521
123510a1bb7a8
1316cb9921230
14a39340d49a
1557acbd2b45
hex315cdc35b0

212011333040 has 80 divisors (see below), whose sum is σ = 537563510400. Its totient is φ = 77290177536.

The previous prime is 212011333033. The next prime is 212011333087. The reversal of 212011333040 is 40333110212.

212011333040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1208075 + ... + 1372394.

It is an arithmetic number, because the mean of its divisors is an integer number (6719543880).

Almost surely, 2212011333040 is an apocalyptic number.

212011333040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212011333040 is an abundant number, since it is smaller than the sum of its proper divisors (325552177360).

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

212011333040 is a wasteful number, since it uses less digits than its factorization.

212011333040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2580574 (or 2580568 counting only the distinct ones).

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

Adding to 212011333040 its reverse (40333110212), we get a palindrome (252344443252).

The spelling of 212011333040 in words is "two hundred twelve billion, eleven million, three hundred thirty-three thousand, forty".

Divisors: 1 2 4 5 8 10 13 16 20 26 40 52 65 79 80 104 130 158 208 260 316 395 520 632 790 1027 1040 1264 1580 2054 3160 4108 5135 6320 8216 10270 16432 20540 41080 82160 2580469 5160938 10321876 12902345 20643752 25804690 33546097 41287504 51609380 67092194 103218760 134184388 167730485 203857051 206437520 268368776 335460970 407714102 536737552 670921940 815428204 1019285255 1341843880 1630856408 2038570510 2650141663 2683687760 3261712816 4077141020 5300283326 8154282040 10600566652 13250708315 16308564080 21201133304 26501416630 42402266608 53002833260 106005666520 212011333040