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121675007220 = 223513313749727
BaseRepresentation
bin111000101010001100…
…1010100010011110100
3102122001201222210102220
41301110121110103310
53443142300212340
6131521405402340
711535135332244
oct1612431242364
9378051883386
10121675007220
1147669407908
121b6b88693b0
13b621222ac0
145c639a3b24
15327206ded0
hex1c546544f4

121675007220 has 96 divisors (see below), whose sum is σ = 367021283328. Its totient is φ = 29940621312.

The previous prime is 121675007177. The next prime is 121675007297. The reversal of 121675007220 is 22700576121.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 2421997 + ... + 2471723.

It is an arithmetic number, because the mean of its divisors is an integer number (3823138368).

Almost surely, 2121675007220 is an apocalyptic number.

121675007220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121675007220 is an abundant number, since it is smaller than the sum of its proper divisors (245346276108).

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

121675007220 is a wasteful number, since it uses less digits than its factorization.

121675007220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52889 (or 52887 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 33.

The spelling of 121675007220 in words is "one hundred twenty-one billion, six hundred seventy-five million, seven thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 13 15 20 26 30 39 52 60 65 78 130 156 195 260 390 780 3137 6274 9411 12548 15685 18822 31370 37644 40781 47055 49727 62740 81562 94110 99454 122343 149181 163124 188220 198908 203905 244686 248635 298362 407810 489372 497270 596724 611715 646451 745905 815620 994540 1223430 1292902 1491810 1939353 2446860 2585804 2983620 3232255 3878706 6464510 7757412 9696765 12929020 19393530 38787060 155993599 311987198 467980797 623974396 779967995 935961594 1559935990 1871923188 2027916787 2339903985 3119871980 4055833574 4679807970 6083750361 8111667148 9359615940 10139583935 12167500722 20279167870 24335001444 30418751805 40558335740 60837503610 121675007220