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143920549854 = 23221137893773
BaseRepresentation
bin1000011000001001010…
…1010100111111011110
3111202111001220110002100
42012002111110333132
54324222130043404
6150041032505530
713253325326544
oct2060225247736
9452431813070
10143920549854
1156044442294
1223a8684b2a6
1310757bb6693
146d741bdd94
153b25000d39
hex2182554fde

143920549854 has 24 divisors (see below), whose sum is σ = 313305723432. Its totient is φ = 47746152720.

The previous prime is 143920549847. The next prime is 143920549859. The reversal of 143920549854 is 458945029341.

It is a happy number.

143920549854 is a `hidden beast` number, since 1 + 4 + 3 + 92 + 0 + 549 + 8 + 5 + 4 = 666.

143920549854 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 143920549854.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143920549859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18943089 + ... + 18950684.

It is an arithmetic number, because the mean of its divisors is an integer number (13054405143).

Almost surely, 2143920549854 is an apocalyptic number.

143920549854 is an abundant number, since it is smaller than the sum of its proper divisors (169385173578).

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

143920549854 is a wasteful number, since it uses less digits than its factorization.

143920549854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37893992 (or 37893989 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 54.

The spelling of 143920549854 in words is "one hundred forty-three billion, nine hundred twenty million, five hundred forty-nine thousand, eight hundred fifty-four".

Divisors: 1 2 3 6 9 18 211 422 633 1266 1899 3798 37893773 75787546 113681319 227362638 341043957 682087914 7995586103 15991172206 23986758309 47973516618 71960274927 143920549854