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424939090 = 2542493909
BaseRepresentation
bin11001010101000…
…000111001010010
31002121121010211211
4121111000321102
51332241022330
6110055530334
713346631322
oct3125007122
91077533754
10424939090
111a895a034
12ba3899aa
136a063b64
1440617282
152748cd2a
hex19540e52

424939090 has 8 divisors (see below), whose sum is σ = 764890380. Its totient is φ = 169975632.

The previous prime is 424939057. The next prime is 424939121. The reversal of 424939090 is 90939424.

It can be written as a sum of positive squares in 2 ways, for example, as 389786049 + 35153041 = 19743^2 + 5929^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21246945 + ... + 21246964.

Almost surely, 2424939090 is an apocalyptic number.

424939090 is a deficient number, since it is larger than the sum of its proper divisors (339951290).

424939090 is a wasteful number, since it uses less digits than its factorization.

424939090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42493916.

The product of its (nonzero) digits is 69984, while the sum is 40.

The square root of 424939090 is about 20614.0507906622. The cubic root of 424939090 is about 751.8113787246.

The spelling of 424939090 in words is "four hundred twenty-four million, nine hundred thirty-nine thousand, ninety".

Divisors: 1 2 5 10 42493909 84987818 212469545 424939090