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420226541 = 7286120983
BaseRepresentation
bin11001000011000…
…010010111101101
31002021201201102222
4121003002113231
51330034222131
6105410525125
713261603160
oct3103022755
91067651388
10420226541
111a6230469
12b88967a5
13690a3b77
143db4bad7
1526d5b87b
hex190c25ed

420226541 has 8 divisors (see below), whose sum is σ = 480449664. Its totient is φ = 360051120.

The previous prime is 420226529. The next prime is 420226561. The reversal of 420226541 is 145622024.

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 420226541 - 210 = 420225517 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 420226541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420226561) 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, 9536 + ... + 30518.

It is an arithmetic number, because the mean of its divisors is an integer number (60056208).

Almost surely, 2420226541 is an apocalyptic number.

It is an amenable number.

420226541 is a deficient number, since it is larger than the sum of its proper divisors (60223123).

420226541 is a wasteful number, since it uses less digits than its factorization.

420226541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23851.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 420226541 is about 20499.4278212832. The cubic root of 420226541 is about 749.0218602856.

Adding to 420226541 its reverse (145622024), we get a palindrome (565848565).

The spelling of 420226541 in words is "four hundred twenty million, two hundred twenty-six thousand, five hundred forty-one".

Divisors: 1 7 2861 20027 20983 146881 60032363 420226541