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242751129 = 3139582137
BaseRepresentation
bin11100111100000…
…01011010011001
3121220210000221120
432132001122121
5444121014004
640030555453
76005231145
oct1636013231
9556700846
10242751129
11115032575
1269368b89
133b3a512a
1424350225
15164a13d9
hexe781699

242751129 has 8 divisors (see below), whose sum is σ = 325997280. Its totient is φ = 160669536.

The previous prime is 242751127. The next prime is 242751151. The reversal of 242751129 is 921157242.

242751129 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 242751129 - 21 = 242751127 is a prime.

It is a super-2 number, since 2×2427511292 = 117856221261549282, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 242751129.

It is not an unprimeable number, because it can be changed into a prime (242751127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 290652 + ... + 291485.

It is an arithmetic number, because the mean of its divisors is an integer number (40749660).

Almost surely, 2242751129 is an apocalyptic number.

It is an amenable number.

242751129 is a deficient number, since it is larger than the sum of its proper divisors (83246151).

242751129 is a wasteful number, since it uses less digits than its factorization.

242751129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582279.

The product of its digits is 10080, while the sum is 33.

The square root of 242751129 is about 15580.4726821750. The cubic root of 242751129 is about 623.8120401796.

The spelling of 242751129 in words is "two hundred forty-two million, seven hundred fifty-one thousand, one hundred twenty-nine".

Divisors: 1 3 139 417 582137 1746411 80917043 242751129