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20527672 = 2311892621
BaseRepresentation
bin100111001001…
…1101000111000
31102121220200011
41032103220320
520223341142
62011551304
7336324304
oct116235070
942556604
1020527672
1110650820
126a5b534
134339669
142a24d04
151c07417
hex1393a38

20527672 has 32 divisors (see below), whose sum is σ = 42476400. Its totient is φ = 9222400.

The previous prime is 20527667. The next prime is 20527691. The reversal of 20527672 is 27672502.

It is a congruent 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, 6522 + ... + 9142.

Almost surely, 220527672 is an apocalyptic number.

20527672 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20527672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21238200).

20527672 is an abundant number, since it is smaller than the sum of its proper divisors (21948728).

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

20527672 is a wasteful number, since it uses less digits than its factorization.

20527672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2727 (or 2723 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 20527672 is about 4530.7473997123. The cubic root of 20527672 is about 273.8082733544.

The spelling of 20527672 in words is "twenty million, five hundred twenty-seven thousand, six hundred seventy-two".

Divisors: 1 2 4 8 11 22 44 88 89 178 356 712 979 1958 2621 3916 5242 7832 10484 20968 28831 57662 115324 230648 233269 466538 933076 1866152 2565959 5131918 10263836 20527672