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20850448654 = 2712131227797
BaseRepresentation
bin10011011010110010…
…001001100100001110
31222211002210112111001
4103122302021210032
5320200203324104
613324545250514
71335456614020
oct233262114416
958732715431
1020850448654
11892a597752
12405a933a3a
131c739421a9
14101b224010
1582075aaa4
hex4dac8990e

20850448654 has 16 divisors (see below), whose sum is σ = 35773122528. Its totient is φ = 8928532512.

The previous prime is 20850448631. The next prime is 20850448657. The reversal of 20850448654 is 45684405802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20850448657) 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, 596917 + ... + 630880.

It is an arithmetic number, because the mean of its divisors is an integer number (2235820158).

Almost surely, 220850448654 is an apocalyptic number.

20850448654 is a deficient number, since it is larger than the sum of its proper divisors (14922673874).

20850448654 is a wasteful number, since it uses less digits than its factorization.

20850448654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1229019.

The product of its (nonzero) digits is 1228800, while the sum is 46.

The spelling of 20850448654 in words is "twenty billion, eight hundred fifty million, four hundred forty-eight thousand, six hundred fifty-four".

Divisors: 1 2 7 14 1213 2426 8491 16982 1227797 2455594 8594579 17189158 1489317761 2978635522 10425224327 20850448654