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212013020992 = 2617194864909
BaseRepresentation
bin1100010101110011110…
…1011111011101000000
3202021020112220101021211
43011130331133131000
511433200313132432
6241221502455504
721213610641553
oct3053475373500
9667215811254
10212013020992
1181a06906723
123510a894594
1316cba092616
14a39372c69a
1557ace17d47
hex315cf5f740

212013020992 has 28 divisors (see below), whose sum is σ = 445461184260. Its totient is φ = 99770832896.

The previous prime is 212013020981. The next prime is 212013021029. The reversal of 212013020992 is 299020310212.

It can be written as a sum of positive squares in 2 ways, for example, as 103519201536 + 108493819456 = 321744^2 + 329384^2 .

It is a congruent number.

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, 97431367 + ... + 97433542.

Almost surely, 2212013020992 is an apocalyptic number.

It is an amenable number.

212013020992 is an abundant number, since it is smaller than the sum of its proper divisors (233448163268).

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

212013020992 is a wasteful number, since it uses less digits than its factorization.

212013020992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194864938 (or 194864928 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 31.

The spelling of 212013020992 in words is "two hundred twelve billion, thirteen million, twenty thousand, nine hundred ninety-two".

Divisors: 1 2 4 8 16 17 32 34 64 68 136 272 544 1088 194864909 389729818 779459636 1558919272 3117838544 3312703453 6235677088 6625406906 12471354176 13250813812 26501627624 53003255248 106006510496 212013020992