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242548907 = 4124124547
BaseRepresentation
bin11100111010100…
…00000010101011
3121220101202112212
432131100002223
5444043031112
640022355335
76003426446
oct1635200253
9556352485
10242548907
11114a04647
126928bb4b
133b334083
14242da65d
1516461522
hexe7500ab

242548907 has 8 divisors (see below), whose sum is σ = 249505872. Its totient is φ = 235641600.

The previous prime is 242548897. The next prime is 242548919. The reversal of 242548907 is 709845242.

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 242548907 - 28 = 242548651 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242548937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2393 + ... + 22154.

It is an arithmetic number, because the mean of its divisors is an integer number (31188234).

Almost surely, 2242548907 is an apocalyptic number.

242548907 is a deficient number, since it is larger than the sum of its proper divisors (6956965).

242548907 is a wasteful number, since it uses less digits than its factorization.

242548907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24829.

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 242548907 is about 15573.9817323638. The cubic root of 242548907 is about 623.6387714165.

The spelling of 242548907 in words is "two hundred forty-two million, five hundred forty-eight thousand, nine hundred seven".

Divisors: 1 41 241 9881 24547 1006427 5915827 242548907