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419857042 = 21123829757
BaseRepresentation
bin11001000001101…
…000001010010010
31002021000221120211
4121001220022102
51324440411132
6105354554334
713255504003
oct3101501222
91067027524
10419857042
111a5aa88a0
12b87389aa
1368ca4927
143da931aa
1526cd7147
hex19068292

419857042 has 16 divisors (see below), whose sum is σ = 716910912. Its totient is φ = 182546320.

The previous prime is 419857013. The next prime is 419857049. The reversal of 419857042 is 240758914.

It is a junction number, because it is equal to n+sod(n) for n = 419856986 and 419857004.

It is not an unprimeable number, because it can be changed into a prime (419857049) 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, 414373 + ... + 415384.

It is an arithmetic number, because the mean of its divisors is an integer number (44806932).

Almost surely, 2419857042 is an apocalyptic number.

419857042 is a deficient number, since it is larger than the sum of its proper divisors (297053870).

419857042 is a wasteful number, since it uses less digits than its factorization.

419857042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829793.

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 419857042 is about 20490.4134170104. The cubic root of 419857042 is about 748.8022612846.

The spelling of 419857042 in words is "four hundred nineteen million, eight hundred fifty-seven thousand, forty-two".

Divisors: 1 2 11 22 23 46 253 506 829757 1659514 9127327 18254654 19084411 38168822 209928521 419857042