Search a number
-
+
242451015 = 3597281593
BaseRepresentation
bin11100111001110…
…00001001000111
3121220012210021020
432130320021013
5444031413030
640020322223
76002541162
oct1634701107
9556183236
10242451015
11114948044
1269243373
133b2cb651
14242b2ad9
1516442510
hexe738247

242451015 has 32 divisors (see below), whose sum is σ = 393978816. Its totient is φ = 127303680.

The previous prime is 242450993. The next prime is 242451017. The reversal of 242451015 is 510154242.

242451015 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 242451015 - 25 = 242450983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242451017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 408559 + ... + 409151.

It is an arithmetic number, because the mean of its divisors is an integer number (12311838).

Almost surely, 2242451015 is an apocalyptic number.

242451015 is a deficient number, since it is larger than the sum of its proper divisors (151527801).

242451015 is a wasteful number, since it uses less digits than its factorization.

242451015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 979.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 242451015 is about 15570.8386094006. The cubic root of 242451015 is about 623.5548605573.

The spelling of 242451015 in words is "two hundred forty-two million, four hundred fifty-one thousand, fifteen".

Divisors: 1 3 5 15 97 281 291 485 593 843 1405 1455 1779 2965 4215 8895 27257 57521 81771 136285 166633 172563 287605 408855 499899 833165 862815 2499495 16163401 48490203 80817005 242451015