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212535211144 = 23139191128787
BaseRepresentation
bin1100010111110000010…
…1011111010010001000
3202022120221111101111211
43011330011133102020
511440233003224034
6241345355102504
721232551326044
oct3057405372210
9668527441454
10212535211144
1182154649933
1235235741a34
1317071316989
14a402c1d024
1557ddbb5d64
hex317c15f488

212535211144 has 16 divisors (see below), whose sum is σ = 401370454800. Its totient is φ = 105503089872.

The previous prime is 212535211127. The next prime is 212535211153. The reversal of 212535211144 is 441112535212.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95563282 + ... + 95565505.

It is an arithmetic number, because the mean of its divisors is an integer number (25085653425).

Almost surely, 2212535211144 is an apocalyptic number.

It is an amenable number.

212535211144 is a deficient number, since it is larger than the sum of its proper divisors (188835243656).

212535211144 is a wasteful number, since it uses less digits than its factorization.

212535211144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191128932 (or 191128928 counting only the distinct ones).

The product of its digits is 9600, while the sum is 31.

Adding to 212535211144 its reverse (441112535212), we get a palindrome (653647746356).

The spelling of 212535211144 in words is "two hundred twelve billion, five hundred thirty-five million, two hundred eleven thousand, one hundred forty-four".

Divisors: 1 2 4 8 139 278 556 1112 191128787 382257574 764515148 1529030296 26566901393 53133802786 106267605572 212535211144