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120125420678 = 21921097151667
BaseRepresentation
bin110111111100000001…
…0000111010010000110
3102111001202011122022202
41233320002013102012
53432004101430203
6131103532354502
711451551141234
oct1577002072206
9374052148282
10120125420678
1146a4373957a
121b345915a32
13b43518b6a3
145b57c73954
1531d0ecc388
hex1bf8087486

120125420678 has 24 divisors (see below), whose sum is σ = 190345463352. Its totient is φ = 56849270112.

The previous prime is 120125420677. The next prime is 120125420699. The reversal of 120125420678 is 876024521021.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120125420677) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 716201 + ... + 867867.

It is an arithmetic number, because the mean of its divisors is an integer number (7931060973).

Almost surely, 2120125420678 is an apocalyptic number.

120125420678 is a deficient number, since it is larger than the sum of its proper divisors (70220042674).

120125420678 is a wasteful number, since it uses less digits than its factorization.

120125420678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152804 (or 152785 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 38.

Adding to 120125420678 its reverse (876024521021), we get a palindrome (996149941699).

The spelling of 120125420678 in words is "one hundred twenty billion, one hundred twenty-five million, four hundred twenty thousand, six hundred seventy-eight".

Divisors: 1 2 19 38 361 722 1097 2194 20843 41686 151667 303334 396017 792034 2881673 5763346 54751787 109503574 166378699 332757398 3161195281 6322390562 60062710339 120125420678