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242412247 = 71122971139
BaseRepresentation
bin11100111001011…
…10101011010111
3121220010211002101
432130232223113
5444024142442
640015422531
76002320150
oct1634565327
9556124071
10242412247
11114920a00
1269224a47
133b2b6acc
14242a2927
1516435cb7
hexe72ead7

242412247 has 48 divisors (see below), whose sum is σ = 321753600. Its totient is φ = 178516800.

The previous prime is 242412217. The next prime is 242412253. The reversal of 242412247 is 742214242.

It is not a de Polignac number, because 242412247 - 219 = 241887959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242412217) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1743904 + ... + 1744042.

It is an arithmetic number, because the mean of its divisors is an integer number (6703200).

Almost surely, 2242412247 is an apocalyptic number.

242412247 is a deficient number, since it is larger than the sum of its proper divisors (79341353).

242412247 is a wasteful number, since it uses less digits than its factorization.

242412247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268 (or 257 counting only the distinct ones).

The product of its digits is 7168, while the sum is 28.

The square root of 242412247 is about 15569.5936684295. The cubic root of 242412247 is about 623.5216232407.

Adding to 242412247 its reverse (742214242), we get a palindrome (984626489).

The spelling of 242412247 in words is "two hundred forty-two million, four hundred twelve thousand, two hundred forty-seven".

Divisors: 1 7 11 29 71 77 121 139 203 319 497 781 847 973 1529 2059 2233 3509 4031 5467 8591 9869 10703 14413 16819 22649 24563 28217 44341 60137 69083 108559 117733 158543 249139 286201 310387 487751 759913 1194149 1743973 2003407 3148211 3414257 8359043 22037477 34630321 242412247