Search a number
-
+
218925269248 = 2871920293169
BaseRepresentation
bin1100101111100011110…
…1101000000100000000
3202221002021111222022111
43023320331220010000
512041324332103443
6244323424145104
721550113041050
oct3137075500400
9687067458274
10218925269248
1184933675094
1236519768194
131784c152a4a
14a84b765560
155a64b9b69d
hex32f8f68100

218925269248 has 144 divisors (see below), whose sum is σ = 526133776000. Its totient is φ = 88815108096.

The previous prime is 218925269237. The next prime is 218925269249. The reversal of 218925269248 is 842962529812.

It is a junction number, because it is equal to n+sod(n) for n = 218925269192 and 218925269201.

It is not an unprimeable number, because it can be changed into a prime (218925269249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69081808 + ... + 69084976.

Almost surely, 2218925269248 is an apocalyptic number.

218925269248 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 218925269248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (263066888000).

218925269248 is an abundant number, since it is smaller than the sum of its proper divisors (307208506752).

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

218925269248 is a wasteful number, since it uses less digits than its factorization.

218925269248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5240 (or 5226 counting only the distinct ones).

The product of its digits is 9953280, while the sum is 58.

The spelling of 218925269248 in words is "two hundred eighteen billion, nine hundred twenty-five million, two hundred sixty-nine thousand, two hundred forty-eight".

Divisors: 1 2 4 7 8 14 16 19 28 32 38 56 64 76 112 128 133 152 224 256 266 304 448 532 608 896 1064 1216 1792 2029 2128 2432 3169 4058 4256 4864 6338 8116 8512 12676 14203 16232 17024 22183 25352 28406 32464 34048 38551 44366 50704 56812 60211 64928 77102 88732 101408 113624 120422 129856 154204 177464 202816 227248 240844 259712 269857 308408 354928 405632 421477 454496 481688 519424 539714 616816 709856 811264 842954 908992 963376 1079428 1233632 1419712 1685908 1817984 1926752 2158856 2467264 2839424 3371816 3635968 3853504 4317712 4934528 5678848 6429901 6743632 7707008 8635424 9869056 12859802 13487264 15414016 17270848 25719604 26974528 34541696 45009307 51439208 53949056 69083392 90018614 102878416 107898112 122168119 180037228 205756832 244336238 360074456 411513664 488672476 720148912 823027328 855176833 977344952 1440297824 1646054656 1710353666 1954689904 2880595648 3420707332 3909379808 5761191296 6841414664 7818759616 11522382592 13682829328 15637519232 27365658656 31275038464 54731317312 109462634624 218925269248