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420025260 = 223561114761
BaseRepresentation
bin11001000010010…
…001001110101100
31002021100111100010
4121002101032230
51330011302020
6105402333220
713260104304
oct3102211654
91067314303
10420025260
111a6103216
12b87ba210
1369033375
143dad8604
1526d1bde0
hex190913ac

420025260 has 48 divisors (see below), whose sum is σ = 1195360992. Its totient is φ = 110169600.

The previous prime is 420025253. The next prime is 420025289. The reversal of 420025260 is 62520024.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53721 + ... + 61040.

It is an arithmetic number, because the mean of its divisors is an integer number (24903354).

Almost surely, 2420025260 is an apocalyptic number.

It is an amenable number.

420025260 is an abundant number, since it is smaller than the sum of its proper divisors (775335732).

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

420025260 is a wasteful number, since it uses less digits than its factorization.

420025260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114834 (or 114832 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 420025260 is about 20494.5178035493. The cubic root of 420025260 is about 748.9022518269.

Adding to 420025260 its reverse (62520024), we get a palindrome (482545284).

The spelling of 420025260 in words is "four hundred twenty million, twenty-five thousand, two hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 61 122 183 244 305 366 610 732 915 1220 1830 3660 114761 229522 344283 459044 573805 688566 1147610 1377132 1721415 2295220 3442830 6885660 7000421 14000842 21001263 28001684 35002105 42002526 70004210 84005052 105006315 140008420 210012630 420025260