Search a number
-
+
1625027968 = 2722955439
BaseRepresentation
bin110000011011011…
…1111010110000000
311012020202222022001
41200312333112000
511312001343333
6425125553344
755161336604
oct14066772600
94166688261
101625027968
11764316623
12394275854
131cb889915
14115b6b504
15979e4b7d
hex60dbf580

1625027968 has 32 divisors (see below), whose sum is σ = 3251556000. Its totient is φ = 808951296.

The previous prime is 1625027959. The next prime is 1625027969. The reversal of 1625027968 is 8697205261.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1625027969) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1593 + ... + 57031.

It is an arithmetic number, because the mean of its divisors is an integer number (101611125).

Almost surely, 21625027968 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 1625027968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1625778000).

1625027968 is an abundant number, since it is smaller than the sum of its proper divisors (1626528032).

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

1625027968 is an equidigital number, since it uses as much as digits as its factorization.

1625027968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55682 (or 55670 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 1625027968 is about 40311.6356403458. The cubic root of 1625027968 is about 1175.6740886554.

The spelling of 1625027968 in words is "one billion, six hundred twenty-five million, twenty-seven thousand, nine hundred sixty-eight".

Divisors: 1 2 4 8 16 32 64 128 229 458 916 1832 3664 7328 14656 29312 55439 110878 221756 443512 887024 1774048 3548096 7096192 12695531 25391062 50782124 101564248 203128496 406256992 812513984 1625027968