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242500839 = 3711547659
BaseRepresentation
bin11100111010001…
…00010011100111
3121220022022121120
432131010103213
5444040011324
640021345023
76003136350
oct1635042347
9556268546
10242500839
11114981519
1269268173
133b318229
14242c6d27
1516452179
hexe7444e7

242500839 has 8 divisors (see below), whose sum is σ = 369525120. Its totient is φ = 138571896.

The previous prime is 242500837. The next prime is 242500877. The reversal of 242500839 is 938005242.

It is a happy number.

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

It is not a de Polignac number, because 242500839 - 21 = 242500837 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242500837) 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, 5773809 + ... + 5773850.

It is an arithmetic number, because the mean of its divisors is an integer number (46190640).

Almost surely, 2242500839 is an apocalyptic number.

242500839 is a deficient number, since it is larger than the sum of its proper divisors (127024281).

242500839 is a wasteful number, since it uses less digits than its factorization.

242500839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11547669.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 242500839 is about 15572.4384410406. The cubic root of 242500839 is about 623.5975714109.

The spelling of 242500839 in words is "two hundred forty-two million, five hundred thousand, eight hundred thirty-nine".

Divisors: 1 3 7 21 11547659 34642977 80833613 242500839