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420459970 = 25710159471
BaseRepresentation
bin11001000011111…
…011010111000010
31002022011120122111
4121003323113002
51330114204340
6105415525534
713263564550
oct3103732702
91068146574
10420459970
111a637a887
12b89898aa
13691561a8
143dbacbd0
1526da5aea
hex190fb5c2

420459970 has 32 divisors (see below), whose sum is σ = 873524736. Its totient is φ = 142728000.

The previous prime is 420459937. The next prime is 420460021. The reversal of 420459970 is 79954024.

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, 22666 + ... + 36805.

It is an arithmetic number, because the mean of its divisors is an integer number (27297648).

Almost surely, 2420459970 is an apocalyptic number.

420459970 is an abundant number, since it is smaller than the sum of its proper divisors (453064766).

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

420459970 is a wasteful number, since it uses less digits than its factorization.

420459970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59586.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 420459970 is about 20505.1205799917. The cubic root of 420459970 is about 749.1605244286.

The spelling of 420459970 in words is "four hundred twenty million, four hundred fifty-nine thousand, nine hundred seventy".

Divisors: 1 2 5 7 10 14 35 70 101 202 505 707 1010 1414 3535 7070 59471 118942 297355 416297 594710 832594 2081485 4162970 6006571 12013142 30032855 42045997 60065710 84091994 210229985 420459970