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38239615871 = 677345716339
BaseRepresentation
bin100011100111010000…
…100011101101111111
310122200222120202110022
4203213100203231333
51111303320201441
625322251402355
72522420241362
oct434720435577
9118628522408
1038239615871
11152432a2426
1274b24533bb
1337b5453252
141bca8880d9
15edc1a684b
hex8e7423b7f

38239615871 has 8 divisors (see below), whose sum is σ = 38309522160. Its totient is φ = 38169750528.

The previous prime is 38239615849. The next prime is 38239615891. The reversal of 38239615871 is 17851693283.

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

It is a cyclic number.

It is not a de Polignac number, because 38239615871 - 26 = 38239615807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38239615801) 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, 2332220 + ... + 2348558.

It is an arithmetic number, because the mean of its divisors is an integer number (4788690270).

Almost surely, 238239615871 is an apocalyptic number.

38239615871 is a deficient number, since it is larger than the sum of its proper divisors (69906289).

38239615871 is a wasteful number, since it uses less digits than its factorization.

38239615871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20473.

The product of its digits is 2177280, while the sum is 53.

The spelling of 38239615871 in words is "thirty-eight billion, two hundred thirty-nine million, six hundred fifteen thousand, eight hundred seventy-one".

Divisors: 1 677 3457 16339 2340389 11061503 56483923 38239615871