Search a number
-
+
242710191 = 322331109347
BaseRepresentation
bin11100111011101…
…11011010101111
3121220200221210100
432131313122233
5444113211231
640030042143
76005000613
oct1635673257
9556627710
10242710191
11115004839
1269349353
133b38c5c9
142433d343
15164941e6
hexe7776af

242710191 has 48 divisors (see below), whose sum is σ = 382187520. Its totient is φ = 147977280.

The previous prime is 242710147. The next prime is 242710213. The reversal of 242710191 is 191017242.

It is not a de Polignac number, because 242710191 - 210 = 242709167 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242710291) 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, 699280 + ... + 699626.

It is an arithmetic number, because the mean of its divisors is an integer number (7962240).

Almost surely, 2242710191 is an apocalyptic number.

242710191 is a deficient number, since it is larger than the sum of its proper divisors (139477329).

242710191 is a wasteful number, since it uses less digits than its factorization.

242710191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516 (or 513 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 242710191 is about 15579.1588668965. The cubic root of 242710191 is about 623.7769712689.

The spelling of 242710191 in words is "two hundred forty-two million, seven hundred ten thousand, one hundred ninety-one".

Divisors: 1 3 9 23 31 69 93 109 207 279 327 347 713 981 1041 2139 2507 3123 3379 6417 7521 7981 10137 10757 22563 23943 30411 32271 37823 71829 77717 96813 113469 233151 247411 340407 699453 742233 869929 1172513 2226699 2609787 3517539 7829361 10552617 26967799 80903397 242710191