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212020030992 = 24372118194961
BaseRepresentation
bin1100010101110101100…
…0001110111000010000
3202021021001002112012110
43011131120032320100
511433204111442432
6241222313025320
721214024346100
oct3053530167020
9667231075173
10212020030992
1181a0a864410
12351110b5240
1316cbb678253
14a394635200
1557ad84edcc
hex315d60ee10

212020030992 has 120 divisors (see below), whose sum is σ = 695063896992. Its totient is φ = 55070131200.

The previous prime is 212020030967. The next prime is 212020031017. The reversal of 212020030992 is 299030020212.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (212020030967) and next prime (212020031017).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4071609 + ... + 4123352.

Almost surely, 2212020030992 is an apocalyptic number.

212020030992 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

212020030992 is an abundant number, since it is smaller than the sum of its proper divisors (483043866000).

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

212020030992 is a wasteful number, since it uses less digits than its factorization.

212020030992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8194997 (or 8194984 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The spelling of 212020030992 in words is "two hundred twelve billion, twenty million, thirty thousand, nine hundred ninety-two".

Divisors: 1 2 3 4 6 7 8 11 12 14 16 21 22 24 28 33 42 44 48 49 56 66 77 84 88 98 112 132 147 154 168 176 196 231 264 294 308 336 392 462 528 539 588 616 784 924 1078 1176 1232 1617 1848 2156 2352 3234 3696 4312 6468 8624 12936 25872 8194961 16389922 24584883 32779844 49169766 57364727 65559688 90144571 98339532 114729454 131119376 172094181 180289142 196679064 229458908 270433713 344188362 360578284 393358128 401553089 458917816 540867426 631011997 688376724 721156568 803106178 917835632 1081734852 1204659267 1262023994 1376753448 1442313136 1606212356 1893035991 2163469704 2409318534 2524047988 2753506896 3212424712 3786071982 4326939408 4417083979 4818637068 5048095976 6424849424 7572143964 8834167958 9637274136 10096191952 13251251937 15144287928 17668335916 19274548272 26502503874 30288575856 35336671832 53005007748 70673343664 106010015496 212020030992