Search a number
-
+
242402969 = 1912758051
BaseRepresentation
bin11100111001011…
…00011010011001
3121220010100100202
432130230122121
5444023343334
640015311545
76002251124
oct1634543231
9556110322
10242402969
11114914a36
126921b5b5
133b2b2813
142429d3bb
151643317e
hexe72c699

242402969 has 4 divisors (see below), whose sum is σ = 255161040. Its totient is φ = 229644900.

The previous prime is 242402939. The next prime is 242402971. The reversal of 242402969 is 969204242.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 969204242 = 2484602121.

It is a cyclic number.

It is not a de Polignac number, because 242402969 - 212 = 242398873 is a prime.

It is a super-2 number, since 2×2424029692 = 117518398760029922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (242402939) 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, 6379007 + ... + 6379044.

It is an arithmetic number, because the mean of its divisors is an integer number (63790260).

Almost surely, 2242402969 is an apocalyptic number.

It is an amenable number.

242402969 is a deficient number, since it is larger than the sum of its proper divisors (12758071).

242402969 is a wasteful number, since it uses less digits than its factorization.

242402969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12758070.

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 242402969 is about 15569.2957130372. The cubic root of 242402969 is about 623.5136683244.

The spelling of 242402969 in words is "two hundred forty-two million, four hundred two thousand, nine hundred sixty-nine".

Divisors: 1 19 12758051 242402969