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121427301380 = 22571178848897
BaseRepresentation
bin111000100010110100…
…0011001010000000100
3102121102110220000220112
41301011220121100010
53442140342121010
6131441040252152
711526040013630
oct1610550312004
9377373800815
10121427301380
1147551600840
121b649911058
13b5b1b046b8
145c3cb23dc0
15325a43ea05
hex1c45a19404

121427301380 has 48 divisors (see below), whose sum is σ = 317918756736. Its totient is φ = 37847470080.

The previous prime is 121427301349. The next prime is 121427301397. The reversal of 121427301380 is 83103724121.

121427301380 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39422909 + ... + 39425988.

It is an arithmetic number, because the mean of its divisors is an integer number (6623307432).

Almost surely, 2121427301380 is an apocalyptic number.

121427301380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121427301380 is an abundant number, since it is smaller than the sum of its proper divisors (196491455356).

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

121427301380 is a wasteful number, since it uses less digits than its factorization.

121427301380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78848924 (or 78848922 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The spelling of 121427301380 in words is "one hundred twenty-one billion, four hundred twenty-seven million, three hundred one thousand, three hundred eighty".

Divisors: 1 2 4 5 7 10 11 14 20 22 28 35 44 55 70 77 110 140 154 220 308 385 770 1540 78848897 157697794 315395588 394244485 551942279 788488970 867337867 1103884558 1576977940 1734675734 2207769116 2759711395 3469351468 4336689335 5519422790 6071365069 8673378670 11038845580 12142730138 17346757340 24285460276 30356825345 60713650690 121427301380