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38806110719 = 56131691349
BaseRepresentation
bin100100001001000001…
…100100000111111111
310201011110112200021222
4210021001210013333
51113433331020334
625454405343555
72542436333015
oct441101440777
9121143480258
1038806110719
1115504046392
127630107bbb
13387591a5bc
141c41bcc8b5
151021ca6d2e
hex9090641ff

38806110719 has 4 divisors (see below), whose sum is σ = 38806858200. Its totient is φ = 38805363240.

The previous prime is 38806110703. The next prime is 38806110731. The reversal of 38806110719 is 91701160883.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91701160883 = 208344023601.

It is a cyclic number.

It is not a de Polignac number, because 38806110719 - 24 = 38806110703 is a prime.

It is a super-2 number, since 2×388061107192 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38806110719.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38806110419) 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, 289544 + ... + 401805.

It is an arithmetic number, because the mean of its divisors is an integer number (9701714550).

Almost surely, 238806110719 is an apocalyptic number.

38806110719 is a deficient number, since it is larger than the sum of its proper divisors (747481).

38806110719 is an equidigital number, since it uses as much as digits as its factorization.

38806110719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747480.

The product of its (nonzero) digits is 72576, while the sum is 44.

The spelling of 38806110719 in words is "thirty-eight billion, eight hundred six million, one hundred ten thousand, seven hundred nineteen".

Divisors: 1 56131 691349 38806110719