Search a number
-
+
242416980 = 22325133613
BaseRepresentation
bin11100111001011…
…11110101010100
3121220011001120200
432130233311110
5444024320410
640015500500
76002340021
oct1634576524
9556131520
10242416980
11114924513
1269227730
133b2b9000
14242a4548
15164373c0
hexe72fd54

242416980 has 144 divisors (see below), whose sum is σ = 797880720. Its totient is φ = 59574528.

The previous prime is 242416963. The next prime is 242416997. The reversal of 242416980 is 89614242.

It is an interprime number because it is at equal distance from previous prime (242416963) and next prime (242416997).

It can be written as a sum of positive squares in 8 ways, for example, as 236482884 + 5934096 = 15378^2 + 2436^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 395154 + ... + 395766.

Almost surely, 2242416980 is an apocalyptic number.

242416980 is a gapful number since it is divisible by the number (20) 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 242416980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (398940360).

242416980 is an abundant number, since it is smaller than the sum of its proper divisors (555463740).

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

242416980 is a wasteful number, since it uses less digits than its factorization.

242416980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667 (or 636 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 242416980 is about 15569.7456626626. The cubic root of 242416980 is about 623.5256812159.

It can be divided in two parts, 2424169 and 80, that added together give a square (2424249 = 15572).

The spelling of 242416980 in words is "two hundred forty-two million, four hundred sixteen thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 9 10 12 13 15 18 20 26 30 36 39 45 52 60 65 78 90 117 130 156 169 180 195 234 260 338 390 468 507 585 613 676 780 845 1014 1170 1226 1521 1690 1839 2028 2197 2340 2452 2535 3042 3065 3380 3678 4394 5070 5517 6084 6130 6591 7356 7605 7969 8788 9195 10140 10985 11034 12260 13182 15210 15938 18390 19773 21970 22068 23907 26364 27585 30420 31876 32955 36780 39546 39845 43940 47814 55170 65910 71721 79092 79690 95628 98865 103597 110340 119535 131820 143442 159380 197730 207194 239070 286884 310791 358605 395460 414388 478140 517985 621582 717210 932373 1035970 1243164 1346761 1434420 1553955 1864746 2071940 2693522 3107910 3729492 4040283 4661865 5387044 6215820 6733805 8080566 9323730 12120849 13467610 16161132 18647460 20201415 24241698 26935220 40402830 48483396 60604245 80805660 121208490 242416980