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143920947044 = 227103233214177
BaseRepresentation
bin1000011000001001011…
…0110101111101100100
3111202111002122121221002
42012002112311331210
54324222230301134
6150041045212432
713253331602540
oct2060226657544
9452432577832
10143920947044
1156044693746
1223a86a01118
1310757cc53c4
146d74284a20
153b2507d87e
hex21825b5f64

143920947044 has 48 divisors (see below), whose sum is σ = 291885205248. Its totient is φ = 60819130368.

The previous prime is 143920947019. The next prime is 143920947047. The reversal of 143920947044 is 440749029341.

It is a self number, because there is not a number n which added to its sum of digits gives 143920947044.

It is not an unprimeable number, because it can be changed into a prime (143920947047) 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, 564884 + ... + 779060.

It is an arithmetic number, because the mean of its divisors is an integer number (6080941776).

Almost surely, 2143920947044 is an apocalyptic number.

143920947044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

143920947044 is an abundant number, since it is smaller than the sum of its proper divisors (147964258204).

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

143920947044 is a wasteful number, since it uses less digits than its factorization.

143920947044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214524 (or 214522 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 47.

The spelling of 143920947044 in words is "one hundred forty-three billion, nine hundred twenty million, nine hundred forty-seven thousand, forty-four".

Divisors: 1 2 4 7 14 28 103 206 233 412 466 721 932 1442 1631 2884 3262 6524 23999 47998 95996 167993 214177 335986 428354 671972 856708 1499239 2998478 5996956 22060231 44120462 49903241 88240924 99806482 154421617 199612964 308843234 349322687 617686468 698645374 1397290748 5140033823 10280067646 20560135292 35980236761 71960473522 143920947044