Search a number
-
+
242551051 = 1092817919
BaseRepresentation
bin11100111010100…
…00100100001011
3121220101212111021
432131100210023
5444043113201
640022413311
76003435631
oct1635204413
9556355437
10242551051
11114a06216
1269291237
133b335042
14242db351
1516461ea1
hexe75090b

242551051 has 8 divisors (see below), whose sum is σ = 245678400. Its totient is φ = 239440320.

The previous prime is 242551007. The next prime is 242551063. The reversal of 242551051 is 150155242.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 242551051 - 27 = 242550923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242551081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26670 + ... + 34588.

It is an arithmetic number, because the mean of its divisors is an integer number (30709800).

Almost surely, 2242551051 is an apocalyptic number.

242551051 is a deficient number, since it is larger than the sum of its proper divisors (3127349).

242551051 is a wasteful number, since it uses less digits than its factorization.

242551051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8309.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 242551051 is about 15574.0505649622. The cubic root of 242551051 is about 623.6406089532.

The spelling of 242551051 in words is "two hundred forty-two million, five hundred fifty-one thousand, fifty-one".

Divisors: 1 109 281 7919 30629 863171 2225239 242551051