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20535108 = 22311155569
BaseRepresentation
bin100111001010…
…1011101000100
31102122021212120
41032111131010
520224110413
62012045540
7336355056
oct116253504
942567776
1020535108
1110656370
126a638b0
13433cb69
142a278d6
151c09723
hex1395744

20535108 has 24 divisors (see below), whose sum is σ = 52271520. Its totient is φ = 6222720.

The previous prime is 20535107. The next prime is 20535121. The reversal of 20535108 is 80153502.

It is not an unprimeable number, because it can be changed into a prime (20535107) 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, 77653 + ... + 77916.

It is an arithmetic number, because the mean of its divisors is an integer number (2177980).

Almost surely, 220535108 is an apocalyptic number.

It is an amenable number.

20535108 is an abundant number, since it is smaller than the sum of its proper divisors (31736412).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20535108 is a wasteful number, since it uses less digits than its factorization.

20535108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155587 (or 155585 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 20535108 is about 4531.5679405698. The cubic root of 20535108 is about 273.8413310488.

The spelling of 20535108 in words is "twenty million, five hundred thirty-five thousand, one hundred eight".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 155569 311138 466707 622276 933414 1711259 1866828 3422518 5133777 6845036 10267554 20535108