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38685048443 = 83215892
BaseRepresentation
bin100100000001110011…
…101111111001111011
310200212000202002001222
4210001303233321323
51113211333022233
625434402502255
72536436325536
oct440163577173
9120760662058
1038685048443
1115451779518
1275b766498b
133856811012
141c2dab7a1d
151016341898
hex901cefe7b

38685048443 has 6 divisors (see below), whose sum is σ = 39152946924. Its totient is φ = 38217193224.

The previous prime is 38685048407. The next prime is 38685048473. The reversal of 38685048443 is 34484058683.

It is a happy number.

It is not a de Polignac number, because 38685048443 - 28 = 38685048187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38685048473) 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, 1781093 + ... + 1802681.

It is an arithmetic number, because the mean of its divisors is an integer number (6525491154).

Almost surely, 238685048443 is an apocalyptic number.

38685048443 is a deficient number, since it is larger than the sum of its proper divisors (467898481).

38685048443 is an frugal number, since it uses more digits than its factorization.

38685048443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43261 (or 21672 counting only the distinct ones).

The product of its (nonzero) digits is 8847360, while the sum is 53.

The spelling of 38685048443 in words is "thirty-eight billion, six hundred eighty-five million, forty-eight thousand, four hundred forty-three".

Divisors: 1 83 21589 1791887 466084921 38685048443