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242040054 = 23131307939
BaseRepresentation
bin11100110110100…
…11110011110110
3121212102220112110
432123103303312
5443430240204
640003431450
75666210064
oct1633236366
9555386473
10242040054
11114697303
1269085586
133b1b6589
1424207034
15163b0889
hexe6d3cf6

242040054 has 16 divisors (see below), whose sum is σ = 487776960. Its totient is φ = 80063880.

The previous prime is 242040037. The next prime is 242040089. The reversal of 242040054 is 450040242.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 242040054.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153184 + ... + 154755.

It is an arithmetic number, because the mean of its divisors is an integer number (30486060).

Almost surely, 2242040054 is an apocalyptic number.

242040054 is an abundant number, since it is smaller than the sum of its proper divisors (245736906).

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

242040054 is a wasteful number, since it uses less digits than its factorization.

242040054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308075.

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 242040054 is about 15557.6365171577. The cubic root of 242040054 is about 623.2023472150.

Adding to 242040054 its reverse (450040242), we get a palindrome (692080296).

The spelling of 242040054 in words is "two hundred forty-two million, forty thousand, fifty-four".

Divisors: 1 2 3 6 131 262 393 786 307939 615878 923817 1847634 40340009 80680018 121020027 242040054