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1983996032 = 273121272
BaseRepresentation
bin111011001000001…
…0110000010000000
312010021020102220112
41312100112002000
513030400333112
6524511530452
7100110454664
oct16620260200
95107212815
101983996032
11928a06647
12474529a28
13258062a65
1414b6d08a4
15b92a0a22
hex76416080

1983996032 has 72 divisors (see below), whose sum is σ = 4116516255. Its totient is φ = 952439040.

The previous prime is 1983996013. The next prime is 1983996037. The reversal of 1983996032 is 2306993891.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 991998016 + 991998016 = 31496^2 + 31496^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=31496.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1983996037) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 15621953 + ... + 15622079.

Almost surely, 21983996032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1983996032

1983996032 is an abundant number, since it is smaller than the sum of its proper divisors (2132520223).

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

1983996032 is an frugal number, since it uses more digits than its factorization.

1983996032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330 (or 160 counting only the distinct ones).

The product of its (nonzero) digits is 629856, while the sum is 50.

The square root of 1983996032 is about 44542.0703605030. The cubic root of 1983996032 is about 1256.5514232545.

Multiplying 1983996032 by its sum of digits (50), we get a square (99199801600 = 3149602).

The spelling of 1983996032 in words is "one billion, nine hundred eighty-three million, nine hundred ninety-six thousand, thirty-two".

Divisors: 1 2 4 8 16 31 32 62 64 124 127 128 248 254 496 508 961 992 1016 1922 1984 2032 3844 3937 3968 4064 7688 7874 8128 15376 15748 16129 16256 30752 31496 32258 61504 62992 64516 122047 123008 125984 129032 244094 251968 258064 488188 499999 503936 516128 976376 999998 1032256 1952752 1999996 2064512 3905504 3999992 7811008 7999984 15499969 15622016 15999968 30999938 31999936 61999876 63999872 123999752 247999504 495999008 991998016 1983996032