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420404024 = 2352550503
BaseRepresentation
bin11001000011101…
…101101100111000
31002022001201220102
4121003231230320
51330110412044
6105414414532
713263242465
oct3103555470
91068051812
10420404024
111a6341847
12b8961448
13691368a1
143db9666c
1526d9424e
hex190edb38

420404024 has 8 divisors (see below), whose sum is σ = 788257560. Its totient is φ = 210202008.

The previous prime is 420404011. The next prime is 420404053.

420404024 is nontrivially palindromic in base 10.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 420403987 and 420404005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26275244 + ... + 26275259.

It is an arithmetic number, because the mean of its divisors is an integer number (98532195).

Almost surely, 2420404024 is an apocalyptic number.

It is an amenable number.

420404024 is a deficient number, since it is larger than the sum of its proper divisors (367853536).

420404024 is a wasteful number, since it uses less digits than its factorization.

420404024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52550509 (or 52550505 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 420404024 is about 20503.7563387785. The cubic root of 420404024 is about 749.1272954280.

It can be divided in two parts, 42040 and 4024, that added together give a palindrome (46064).

The spelling of 420404024 in words is "four hundred twenty million, four hundred four thousand, twenty-four".

Divisors: 1 2 4 8 52550503 105101006 210202012 420404024