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242459090 = 25139174431
BaseRepresentation
bin11100111001110…
…10000111010010
3121220020012100022
432130322013102
5444032142330
640020423442
76002603546
oct1634720722
9556205308
10242459090
11114953115
1269247b82
133b302223
14242b5a26
1516444ae5
hexe73a1d2

242459090 has 16 divisors (see below), whose sum is σ = 439568640. Its totient is φ = 96285360.

The previous prime is 242459089. The next prime is 242459141. The reversal of 242459090 is 90954242.

It is a self number, because there is not a number n which added to its sum of digits gives 242459090.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85826 + ... + 88605.

It is an arithmetic number, because the mean of its divisors is an integer number (27473040).

Almost surely, 2242459090 is an apocalyptic number.

242459090 is a deficient number, since it is larger than the sum of its proper divisors (197109550).

242459090 is a wasteful number, since it uses less digits than its factorization.

242459090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174577.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 242459090 is about 15571.0979060566. The cubic root of 242459090 is about 623.5617831235.

The spelling of 242459090 in words is "two hundred forty-two million, four hundred fifty-nine thousand, ninety".

Divisors: 1 2 5 10 139 278 695 1390 174431 348862 872155 1744310 24245909 48491818 121229545 242459090