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242160319 = 1482116339
BaseRepresentation
bin11100110111100…
…01001010111111
3121212200000111201
432123301022333
5443443112234
640010200331
76000220522
oct1633611277
9555600451
10242160319
111147696a5
12691230a7
133b22923b
1424238bb9
15163d6314
hexe6f12bf

242160319 has 4 divisors (see below), whose sum is σ = 242191480. Its totient is φ = 242129160.

The previous prime is 242160299. The next prime is 242160337. The reversal of 242160319 is 913061242.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 913061242 = 2456530621.

It is a cyclic number.

It is not a de Polignac number, because 242160319 - 25 = 242160287 is a prime.

It is a super-2 number, since 2×2421603192 = 117283240196363522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242160349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6652 + ... + 22990.

It is an arithmetic number, because the mean of its divisors is an integer number (60547870).

Almost surely, 2242160319 is an apocalyptic number.

242160319 is a deficient number, since it is larger than the sum of its proper divisors (31161).

242160319 is a wasteful number, since it uses less digits than its factorization.

242160319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31160.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 242160319 is about 15561.5011807987. The cubic root of 242160319 is about 623.3055491697.

The spelling of 242160319 in words is "two hundred forty-two million, one hundred sixty thousand, three hundred nineteen".

Divisors: 1 14821 16339 242160319