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420350333 = 13193167537
BaseRepresentation
bin11001000011100…
…000100101111101
31002021222000020212
4121003200211331
51330102202313
6105413322205
713262630114
oct3103404575
91067860225
10420350333
111a6305477
12b8936365
1369118310
143db80c7b
1526d833a8
hex190e097d

420350333 has 8 divisors (see below), whose sum is σ = 455033208. Its totient is φ = 386002944.

The previous prime is 420350309. The next prime is 420350351. The reversal of 420350333 is 333053024.

It can be written as a sum of positive squares in 4 ways, for example, as 68525284 + 351825049 = 8278^2 + 18757^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 420350333 - 224 = 403573117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 420350299 and 420350308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420350393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81260 + ... + 86277.

It is an arithmetic number, because the mean of its divisors is an integer number (56879151).

Almost surely, 2420350333 is an apocalyptic number.

It is an amenable number.

420350333 is a deficient number, since it is larger than the sum of its proper divisors (34682875).

420350333 is a wasteful number, since it uses less digits than its factorization.

420350333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167743.

The product of its (nonzero) digits is 3240, while the sum is 23.

The square root of 420350333 is about 20502.4470002973. The cubic root of 420350333 is about 749.0954030073.

The spelling of 420350333 in words is "four hundred twenty million, three hundred fifty thousand, three hundred thirty-three".

Divisors: 1 13 193 2509 167537 2177981 32334641 420350333