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242637069 = 380879023
BaseRepresentation
bin11100111011001…
…01100100001101
3121220120020111010
432131211210031
5444103341234
640024315433
76004244463
oct1635454415
9556506433
10242637069
11114a64904
1269312b79
133b36523c
1424320833
151647c6e9
hexe76590d

242637069 has 4 divisors (see below), whose sum is σ = 323516096. Its totient is φ = 161758044.

The previous prime is 242637023. The next prime is 242637071. The reversal of 242637069 is 960736242.

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.

It is not a de Polignac number, because 242637069 - 29 = 242636557 is a prime.

It is a super-2 number, since 2×2426370692 = 117745494505821522, 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 (242637019) 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, 40439509 + ... + 40439514.

It is an arithmetic number, because the mean of its divisors is an integer number (80879024).

Almost surely, 2242637069 is an apocalyptic number.

It is an amenable number.

242637069 is a deficient number, since it is larger than the sum of its proper divisors (80879027).

242637069 is an equidigital number, since it uses as much as digits as its factorization.

242637069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80879026.

The product of its (nonzero) digits is 108864, while the sum is 39.

The square root of 242637069 is about 15576.8119010278. The cubic root of 242637069 is about 623.7143226140.

The spelling of 242637069 in words is "two hundred forty-two million, six hundred thirty-seven thousand, sixty-nine".

Divisors: 1 3 80879023 242637069