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421050231 = 357247531
BaseRepresentation
bin11001000110001…
…011011101110111
31002100021120100000
4121012023131313
51330242101411
6105440322343
713301603460
oct3106133567
91070246300
10421050231
111a67432a8
12b90133b3
1369301a64
143dcc3d67
1526e70956
hex1918b777

421050231 has 24 divisors (see below), whose sum is σ = 720813184. Its totient is φ = 240599160.

The previous prime is 421050221. The next prime is 421050239. The reversal of 421050231 is 132050124.

It is not a de Polignac number, because 421050231 - 211 = 421048183 is a prime.

It is a super-2 number, since 2×4210502312 = 354566594050306722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421050239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 122065 + ... + 125466.

Almost surely, 2421050231 is an apocalyptic number.

421050231 is a deficient number, since it is larger than the sum of its proper divisors (299762953).

421050231 is an equidigital number, since it uses as much as digits as its factorization.

421050231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247553 (or 247541 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 421050231 is about 20519.5085467464. The cubic root of 421050231 is about 749.5109291489.

The spelling of 421050231 in words is "four hundred twenty-one million, fifty thousand, two hundred thirty-one".

Divisors: 1 3 7 9 21 27 63 81 189 243 567 1701 247531 742593 1732717 2227779 5198151 6683337 15594453 20050011 46783359 60150033 140350077 421050231