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242901287 = 1716578623
BaseRepresentation
bin11100111101001…
…10000100100111
3121221001122220222
432132212010213
5444140320122
640034114555
76006425006
oct1636460447
9557048828
10242901287
11115125372
126941ba5b
133b428595
142438cc3d
15164d0b42
hexe7a6127

242901287 has 8 divisors (see below), whose sum is σ = 257374656. Its totient is φ = 228448512.

The previous prime is 242901251. The next prime is 242901293. The reversal of 242901287 is 782109242.

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 242901287 - 26 = 242901223 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 (242901227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23858 + ... + 32480.

It is an arithmetic number, because the mean of its divisors is an integer number (32171832).

Almost surely, 2242901287 is an apocalyptic number.

242901287 is a deficient number, since it is larger than the sum of its proper divisors (14473369).

242901287 is a wasteful number, since it uses less digits than its factorization.

242901287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10297.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 242901287 is about 15585.2907255527. The cubic root of 242901287 is about 623.9406369878.

The spelling of 242901287 in words is "two hundred forty-two million, nine hundred one thousand, two hundred eighty-seven".

Divisors: 1 17 1657 8623 28169 146591 14288311 242901287