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20434610 = 257291923
BaseRepresentation
bin100110111110…
…0111010110010
31102110012000102
41031330322302
520212401420
62005552402
7335456060
oct115747262
942405012
1020434610
1110597909
126a15702
1343061b1
1429dd030
151bd9a75
hex137ceb2

20434610 has 16 divisors (see below), whose sum is σ = 42037056. Its totient is φ = 7006128.

The previous prime is 20434607. The next prime is 20434643. The reversal of 20434610 is 1643402.

It is a happy number.

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, 145892 + ... + 146031.

It is an arithmetic number, because the mean of its divisors is an integer number (2627316).

Almost surely, 220434610 is an apocalyptic number.

20434610 is an abundant number, since it is smaller than the sum of its proper divisors (21602446).

20434610 is a wasteful number, since it uses less digits than its factorization.

20434610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291937.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 20434610 is about 4520.4656839755. The cubic root of 20434610 is about 273.3938774601.

The spelling of 20434610 in words is "twenty million, four hundred thirty-four thousand, six hundred ten".

Divisors: 1 2 5 7 10 14 35 70 291923 583846 1459615 2043461 2919230 4086922 10217305 20434610