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121279822068 = 22371971467497
BaseRepresentation
bin111000011110011010…
…1110011100011110100
3102121001012101022022210
41300330311303203310
53441340113301233
6131414251253420
711522266323036
oct1607465634364
9377035338283
10121279822068
1147486330409
121b60844a270
13b58a3a8c32
145c272d3c56
15324c50c163
hex1c3cd738f4

121279822068 has 48 divisors (see below), whose sum is σ = 289930644864. Its totient is φ = 39446292480.

The previous prime is 121279822061. The next prime is 121279822091. The reversal of 121279822068 is 860228972121.

121279822068 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121279822061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 651105 + ... + 816392.

It is an arithmetic number, because the mean of its divisors is an integer number (6040221768).

Almost surely, 2121279822068 is an apocalyptic number.

It is an amenable number.

121279822068 is an abundant number, since it is smaller than the sum of its proper divisors (168650822796).

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

121279822068 is a wasteful number, since it uses less digits than its factorization.

121279822068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1467672 (or 1467670 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 48.

The spelling of 121279822068 in words is "one hundred twenty-one billion, two hundred seventy-nine million, eight hundred twenty-two thousand, sixty-eight".

Divisors: 1 2 3 4 6 12 71 97 142 194 213 284 291 388 426 582 852 1164 6887 13774 20661 27548 41322 82644 1467497 2934994 4402491 5869988 8804982 17609964 104192287 142347209 208384574 284694418 312576861 416769148 427041627 569388836 625153722 854083254 1250307444 1708166508 10106651839 20213303678 30319955517 40426607356 60639911034 121279822068