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420211401 = 3532642839
BaseRepresentation
bin11001000010111…
…110101011001001
31002021200221200020
4121002332223021
51330033231101
6105410331053
713261511061
oct3102765311
91067627606
10420211401
111a6220055
12b8889a89
1369099ccc
143db463a1
1526d57136
hex190beac9

420211401 has 8 divisors (see below), whose sum is σ = 570853440. Its totient is φ = 274855152.

The previous prime is 420211397. The next prime is 420211427. The reversal of 420211401 is 104112024.

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

It is not a de Polignac number, because 420211401 - 22 = 420211397 is a prime.

It is not an unprimeable number, because it can be changed into a prime (420211481) 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, 1321261 + ... + 1321578.

It is an arithmetic number, because the mean of its divisors is an integer number (71356680).

Almost surely, 2420211401 is an apocalyptic number.

It is an amenable number.

420211401 is a deficient number, since it is larger than the sum of its proper divisors (150642039).

420211401 is a wasteful number, since it uses less digits than its factorization.

420211401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2642895.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 420211401 is about 20499.0585393574. The cubic root of 420211401 is about 749.0128648779.

Adding to 420211401 its reverse (104112024), we get a palindrome (524323425).

The spelling of 420211401 in words is "four hundred twenty million, two hundred eleven thousand, four hundred one".

Divisors: 1 3 53 159 2642839 7928517 140070467 420211401