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420741868 = 22105185467
BaseRepresentation
bin11001000101000…
…000001011101100
31002022200220100011
4121011000023230
51330202214433
6105425543004
713266150451
oct3105001354
91068626304
10420741868
111a6552658
12b8aa4a64
13692245b1
143dc43828
1526e0e3cd
hex191402ec

420741868 has 6 divisors (see below), whose sum is σ = 736298276. Its totient is φ = 210370932.

The previous prime is 420741859. The next prime is 420741883. The reversal of 420741868 is 868147024.

It is a self number, because there is not a number n which added to its sum of digits gives 420741868.

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 as a sum of consecutive naturals, namely, 52592730 + ... + 52592737.

Almost surely, 2420741868 is an apocalyptic number.

It is an amenable number.

420741868 is a deficient number, since it is larger than the sum of its proper divisors (315556408).

420741868 is a wasteful number, since it uses less digits than its factorization.

420741868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105185471 (or 105185469 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 40.

The square root of 420741868 is about 20511.9932722298. The cubic root of 420741868 is about 749.3279122811.

The spelling of 420741868 in words is "four hundred twenty million, seven hundred forty-one thousand, eight hundred sixty-eight".

Divisors: 1 2 4 105185467 210370934 420741868