Search a number
-
+
215350050 = 235217791069
BaseRepresentation
bin11001101010111…
…11101100100010
3120000012220201210
430311133230202
5420112200200
633211410550
75223305466
oct1465375442
9500186653
10215350050
11100617753
1260153a56
1335800086
142085a4a6
1513d8c650
hexcd5fb22

215350050 has 96 divisors (see below), whose sum is σ = 573177600. Its totient is φ = 53314560.

The previous prime is 215350021. The next prime is 215350111. The reversal of 215350050 is 50053512.

It is a junction number, because it is equal to n+sod(n) for n = 215349999 and 215350026.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 200916 + ... + 201984.

It is an arithmetic number, because the mean of its divisors is an integer number (5970600).

Almost surely, 2215350050 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 215350050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (286588800).

215350050 is an abundant number, since it is smaller than the sum of its proper divisors (357827550).

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

215350050 is a wasteful number, since it uses less digits than its factorization.

215350050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1180 (or 1175 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 215350050 is about 14674.8100498780. The cubic root of 215350050 is about 599.3975898168.

The spelling of 215350050 in words is "two hundred fifteen million, three hundred fifty thousand, fifty".

Divisors: 1 2 3 5 6 10 15 17 25 30 34 50 51 75 79 85 102 150 158 170 237 255 395 425 474 510 790 850 1069 1185 1275 1343 1975 2138 2370 2550 2686 3207 3950 4029 5345 5925 6414 6715 8058 10690 11850 13430 16035 18173 20145 26725 32070 33575 36346 40290 53450 54519 67150 80175 84451 90865 100725 109038 160350 168902 181730 201450 253353 272595 422255 454325 506706 545190 844510 908650 1266765 1362975 1435667 2111275 2533530 2725950 2871334 4222550 4307001 6333825 7178335 8614002 12667650 14356670 21535005 35891675 43070010 71783350 107675025 215350050