Search a number
-
+
60821028 = 22324214013
BaseRepresentation
bin1110100000000…
…0111000100100
311020110000202200
43220000320210
5111032233103
610011334500
71335653532
oct350007044
9136400680
1060821028
1131371814
1218451430
13c7a6898
148113152
1555160a3
hex3a00e24

60821028 has 36 divisors (see below), whose sum is σ = 154145628. Its totient is φ = 20220480.

The previous prime is 60821027. The next prime is 60821041. The reversal of 60821028 is 82012806.

It can be written as a sum of positive squares in 2 ways, for example, as 20142144 + 40678884 = 4488^2 + 6378^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 60820992 and 60821010.

It is not an unprimeable number, because it can be changed into a prime (60821021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13150 + ... + 17162.

It is an arithmetic number, because the mean of its divisors is an integer number (4281823).

Almost surely, 260821028 is an apocalyptic number.

It is an amenable number.

60821028 is an abundant number, since it is smaller than the sum of its proper divisors (93324600).

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

60821028 is a wasteful number, since it uses less digits than its factorization.

60821028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4444 (or 4439 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 60821028 is about 7798.7837513294. The cubic root of 60821028 is about 393.2643560617.

The spelling of 60821028 in words is "sixty million, eight hundred twenty-one thousand, twenty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 421 842 1263 1684 2526 3789 4013 5052 7578 8026 12039 15156 16052 24078 36117 48156 72234 144468 1689473 3378946 5068419 6757892 10136838 15205257 20273676 30410514 60821028