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38790275250 = 235364180687
BaseRepresentation
bin100100001000000101…
…001010000010110010
310201010100202011010010
4210020011022002302
51113420302302000
625453042115350
72542154620326
oct441005120262
9121110664103
1038790275250
11154a610aa21
12762694bb56
1338725648bc
141c3da69986
1510206c9d50
hex90814a0b2

38790275250 has 64 divisors (see below), whose sum is σ = 96972774912. Its totient is φ = 10327808000.

The previous prime is 38790275243. The next prime is 38790275263. The reversal of 38790275250 is 5257209783.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 38790275250.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 440407 + ... + 521093.

It is an arithmetic number, because the mean of its divisors is an integer number (1515199608).

Almost surely, 238790275250 is an apocalyptic number.

38790275250 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 38790275250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48486387456).

38790275250 is an abundant number, since it is smaller than the sum of its proper divisors (58182499662).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38790275250 is a wasteful number, since it uses less digits than its factorization.

38790275250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81348 (or 81338 counting only the distinct ones).

The product of its (nonzero) digits is 1058400, while the sum is 48.

The spelling of 38790275250 in words is "thirty-eight billion, seven hundred ninety million, two hundred seventy-five thousand, two hundred fifty".

Divisors: 1 2 3 5 6 10 15 25 30 50 75 125 150 250 375 641 750 1282 1923 3205 3846 6410 9615 16025 19230 32050 48075 80125 80687 96150 160250 161374 240375 242061 403435 480750 484122 806870 1210305 2017175 2420610 4034350 6051525 10085875 12103050 20171750 30257625 51720367 60515250 103440734 155161101 258601835 310322202 517203670 775805505 1293009175 1551611010 2586018350 3879027525 6465045875 7758055050 12930091750 19395137625 38790275250