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420541398 = 23223363411
BaseRepresentation
bin11001000100001…
…111001111010110
31002022022201100100
4121010033033112
51330124311043
6105421354530
713264354134
oct3104171726
91068281310
10420541398
111a6425a82
12b8a08a46
1369184284
143dbd0754
1526dbecd3
hex1910f3d6

420541398 has 12 divisors (see below), whose sum is σ = 911173068. Its totient is φ = 140180460.

The previous prime is 420541397. The next prime is 420541417. The reversal of 420541398 is 893145024.

420541398 is a `hidden beast` number, since 4 + 20 + 541 + 3 + 98 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420541391) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11681688 + ... + 11681723.

It is an arithmetic number, because the mean of its divisors is an integer number (75931089).

Almost surely, 2420541398 is an apocalyptic number.

420541398 is an abundant number, since it is smaller than the sum of its proper divisors (490631670).

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

420541398 is a wasteful number, since it uses less digits than its factorization.

420541398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23363419 (or 23363416 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 420541398 is about 20507.1060366888. The cubic root of 420541398 is about 749.2088831389.

The spelling of 420541398 in words is "four hundred twenty million, five hundred forty-one thousand, three hundred ninety-eight".

Divisors: 1 2 3 6 9 18 23363411 46726822 70090233 140180466 210270699 420541398