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420830783854 = 21316185799379
BaseRepresentation
bin1100001111110110111…
…10000010100101101110
31111020020102100211102221
412013323132002211232
523343330140040404
6521154344105554
742255402433165
oct6077336024556
91436212324387
10420830783854
11152523008648
12696874652ba
13308b8186850
14165229483dc
15ae3056c954
hex61fb78296e

420830783854 has 8 divisors (see below), whose sum is σ = 679803573960. Its totient is φ = 194229592536.

The previous prime is 420830783827. The next prime is 420830783897. The reversal of 420830783854 is 458387038024.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8092899664 + ... + 8092899715.

It is an arithmetic number, because the mean of its divisors is an integer number (84975446745).

Almost surely, 2420830783854 is an apocalyptic number.

420830783854 is a deficient number, since it is larger than the sum of its proper divisors (258972790106).

420830783854 is a wasteful number, since it uses less digits than its factorization.

420830783854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16185799394.

The product of its (nonzero) digits is 5160960, while the sum is 52.

The spelling of 420830783854 in words is "four hundred twenty billion, eight hundred thirty million, seven hundred eighty-three thousand, eight hundred fifty-four".

Divisors: 1 2 13 26 16185799379 32371598758 210415391927 420830783854