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38986868289 = 319965304637
BaseRepresentation
bin100100010011110011…
…000110011001000001
310201122001200010001210
4210103303012121001
51114321114241124
625524343520333
72550062625015
oct442363063101
9121561603053
1038986868289
1115597086206
1276807590a9
1338a41c8245
141c5bc02545
151032aaea29
hex913cc6641

38986868289 has 8 divisors (see below), whose sum is σ = 52243710400. Its totient is φ = 25860635856.

The previous prime is 38986868287. The next prime is 38986868311. The reversal of 38986868289 is 98286868983.

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

It is not a de Polignac number, because 38986868289 - 21 = 38986868287 is a prime.

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 38986868289.

It is not an unprimeable number, because it can be changed into a prime (38986868287) 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, 32651722 + ... + 32652915.

It is an arithmetic number, because the mean of its divisors is an integer number (6530463800).

Almost surely, 238986868289 is an apocalyptic number.

It is an amenable number.

38986868289 is a deficient number, since it is larger than the sum of its proper divisors (13256842111).

38986868289 is a wasteful number, since it uses less digits than its factorization.

38986868289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65304839.

The product of its digits is 573308928, while the sum is 75.

The spelling of 38986868289 in words is "thirty-eight billion, nine hundred eighty-six million, eight hundred sixty-eight thousand, two hundred eighty-nine".

Divisors: 1 3 199 597 65304637 195913911 12995622763 38986868289