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242630197 = 2313677717
BaseRepresentation
bin11100111011000…
…11111000110101
3121220112220001121
432131203320311
5444103131242
640024223541
76004215445
oct1635437065
9556486047
10242630197
11114a5a727
126930abb1
133b362084
142431c125
151647a667
hexe763e35

242630197 has 8 divisors (see below), whose sum is σ = 253397376. Its totient is φ = 231881232.

The previous prime is 242630191. The next prime is 242630203. The reversal of 242630197 is 791036242.

It is an interprime number because it is at equal distance from previous prime (242630191) and next prime (242630203).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 242630197 - 23 = 242630189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242630191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27583 + ... + 35299.

It is an arithmetic number, because the mean of its divisors is an integer number (31674672).

Almost surely, 2242630197 is an apocalyptic number.

It is an amenable number.

242630197 is a deficient number, since it is larger than the sum of its proper divisors (10767179).

242630197 is a wasteful number, since it uses less digits than its factorization.

242630197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9107.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 242630197 is about 15576.5913151755. The cubic root of 242630197 is about 623.7084342512.

It can be divided in two parts, 2426 and 30197, that added together give a palindrome (32623).

The spelling of 242630197 in words is "two hundred forty-two million, six hundred thirty thousand, one hundred ninety-seven".

Divisors: 1 23 1367 7717 31441 177491 10549139 242630197