Search a number
-
+
218854094160 = 24351325395811
BaseRepresentation
bin1100101111010010111…
…0000111010101010000
3202220220022120220110010
43023310232013111100
512041203122003120
6244312402434520
721545260051362
oct3136456072520
9686808526403
10218854094160
11848a74811a9
12364b9962a40
131783a492400
14a842118d32
155a5d7dc7e0
hex32f4b87550

218854094160 has 120 divisors (see below), whose sum is σ = 734650595424. Its totient is φ = 53871767040.

The previous prime is 218854094113. The next prime is 218854094167. The reversal of 218854094160 is 61490458812.

218854094160 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-2 number, since 2×2188540941602 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218854094167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2657346 + ... + 2738465.

Almost surely, 2218854094160 is an apocalyptic number.

218854094160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

218854094160 is an abundant number, since it is smaller than the sum of its proper divisors (515796501264).

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

218854094160 is a wasteful number, since it uses less digits than its factorization.

218854094160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5395853 (or 5395834 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 48.

The spelling of 218854094160 in words is "two hundred eighteen billion, eight hundred fifty-four million, ninety-four thousand, one hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 13 15 16 20 24 26 30 39 40 48 52 60 65 78 80 104 120 130 156 169 195 208 240 260 312 338 390 507 520 624 676 780 845 1014 1040 1352 1560 1690 2028 2535 2704 3120 3380 4056 5070 6760 8112 10140 13520 20280 40560 5395811 10791622 16187433 21583244 26979055 32374866 43166488 53958110 64749732 70145543 80937165 86332976 107916220 129499464 140291086 161874330 210436629 215832440 258998928 280582172 323748660 350727715 420873258 431664880 561164344 647497320 701455430 841746516 911892059 1052183145 1122328688 1294994640 1402910860 1683493032 1823784118 2104366290 2735676177 2805821720 3366986064 3647568236 4208732580 4559460295 5471352354 5611643440 7295136472 8417465160 9118920590 10942704708 13678380885 14590272944 16834930320 18237841180 21885409416 27356761770 36475682360 43770818832 54713523540 72951364720 109427047080 218854094160