Search a number
-
+
242450481 = 37213172439
BaseRepresentation
bin11100111001110…
…00000000110001
3121220012202112110
432130320000301
5444031403411
640020315533
76002536500
oct1634700061
9556182473
10242450481
111149476a9
1269242ba9
133b2cb330
14242b2837
15164422a6
hexe738031

242450481 has 72 divisors (see below), whose sum is σ = 431175360. Its totient is φ = 120089088.

The previous prime is 242450441. The next prime is 242450491. The reversal of 242450481 is 184054242.

It is not a de Polignac number, because 242450481 - 214 = 242434097 is a prime.

It is a super-2 number, since 2×2424504812 = 117564471474262722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242450401) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 552060 + ... + 552498.

Almost surely, 2242450481 is an apocalyptic number.

242450481 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

242450481 is a deficient number, since it is larger than the sum of its proper divisors (188724879).

242450481 is a wasteful number, since it uses less digits than its factorization.

242450481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503 (or 479 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 30.

The square root of 242450481 is about 15570.8214619525. The cubic root of 242450481 is about 623.5544027623.

The spelling of 242450481 in words is "two hundred forty-two million, four hundred fifty thousand, four hundred eighty-one".

Divisors: 1 3 7 13 17 21 39 49 51 91 119 147 221 273 289 357 439 637 663 833 867 1317 1547 1911 2023 2499 3073 3757 4641 5707 6069 7463 9219 10829 11271 14161 17121 21511 22389 26299 32487 39949 42483 52241 64533 78897 97019 119847 126871 156723 184093 279643 291057 365687 380613 552279 679133 838929 888097 1097061 1649323 2037399 2664291 4753931 4947969 6216679 11545261 14261793 18650037 34635783 80816827 242450481