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420026454 = 23243353891
BaseRepresentation
bin11001000010010…
…001100001010110
31002021100112222100
4121002101201112
51330011321304
6105402342530
713260110631
oct3102214126
91067315870
10420026454
111a6104101
12b87baa46
1369033a83
143dad8c18
1526d1c439
hex19091856

420026454 has 24 divisors (see below), whose sum is σ = 912175992. Its totient is φ = 139682880.

The previous prime is 420026443. The next prime is 420026473. The reversal of 420026454 is 454620024.

420026454 is a `hidden beast` number, since 4 + 200 + 2 + 6 + 454 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19152 + ... + 34739.

It is an arithmetic number, because the mean of its divisors is an integer number (38007333).

Almost surely, 2420026454 is an apocalyptic number.

420026454 is an abundant number, since it is smaller than the sum of its proper divisors (492149538).

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

420026454 is a wasteful number, since it uses less digits than its factorization.

420026454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54332 (or 54329 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 420026454 is about 20494.5469332698. The cubic root of 420026454 is about 748.9029614576.

Adding to 420026454 its reverse (454620024), we get a palindrome (874646478).

The spelling of 420026454 in words is "four hundred twenty million, twenty-six thousand, four hundred fifty-four".

Divisors: 1 2 3 6 9 18 433 866 1299 2598 3897 7794 53891 107782 161673 323346 485019 970038 23334803 46669606 70004409 140008818 210013227 420026454