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38676469919 = 156724681857
BaseRepresentation
bin100100000001010011…
…000001100010011111
310200211102121020112212
4210001103001202133
51113202134014134
625433454551035
72536303366343
oct440123014237
9120742536485
1038676469919
111544794a32a
1275b480847b
133854ac9479
141c2c8c3623
1510156e9bce
hex9014c189f

38676469919 has 4 divisors (see below), whose sum is σ = 38701153344. Its totient is φ = 38651786496.

The previous prime is 38676469913. The next prime is 38676469967. The reversal of 38676469919 is 91996467683.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91996467683 = 233999846421.

It is a cyclic number.

It is not a de Polignac number, because 38676469919 - 228 = 38408034463 is a prime.

It is a super-2 number, since 2×386764699192 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38676469913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12339362 + ... + 12342495.

It is an arithmetic number, because the mean of its divisors is an integer number (9675288336).

Almost surely, 238676469919 is an apocalyptic number.

38676469919 is a deficient number, since it is larger than the sum of its proper divisors (24683425).

38676469919 is a wasteful number, since it uses less digits than its factorization.

38676469919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24683424.

The product of its digits is 105815808, while the sum is 68.

The spelling of 38676469919 in words is "thirty-eight billion, six hundred seventy-six million, four hundred sixty-nine thousand, nine hundred nineteen".

Divisors: 1 1567 24681857 38676469919