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242030142 = 23213446119
BaseRepresentation
bin11100110110100…
…01011000111110
3121212102101221100
432123101120332
5443424431032
640003313530
75666136144
oct1633213076
9555371840
10242030142
1111468a912
126907b8a6
133b1b1c03
1424203594
15163ac97c
hexe6d163e

242030142 has 12 divisors (see below), whose sum is σ = 524398680. Its totient is φ = 80676708.

The previous prime is 242030137. The next prime is 242030153. The reversal of 242030142 is 241030242.

It is a super-3 number, since 3×2420301423 (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 13446119 = 242030142 / (2 + 4 + 2 + 0 + 3 + 0 + 1 + 4 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6723042 + ... + 6723077.

It is an arithmetic number, because the mean of its divisors is an integer number (43699890).

Almost surely, 2242030142 is an apocalyptic number.

242030142 is an abundant number, since it is smaller than the sum of its proper divisors (282368538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

242030142 is a wasteful number, since it uses less digits than its factorization.

242030142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13446127 (or 13446124 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 242030142 is about 15557.3179565117. The cubic root of 242030142 is about 623.1938399922.

Adding to 242030142 its reverse (241030242), we get a palindrome (483060384).

The spelling of 242030142 in words is "two hundred forty-two million, thirty thousand, one hundred forty-two".

Divisors: 1 2 3 6 9 18 13446119 26892238 40338357 80676714 121015071 242030142