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20582632672 = 257213126679
BaseRepresentation
bin10011001010110100…
…100000110011100000
31222010102212002000121
4103022310200303200
5314123123221142
613242221130024
71326025330300
oct231264406340
958112762017
1020582632672
1188023a5628
123ba50b9914
131c303024b4
14dd382b600
15806ea7c67
hex4cad20ce0

20582632672 has 36 divisors (see below), whose sum is σ = 47137907880. Its totient is φ = 8821127616.

The previous prime is 20582632669. The next prime is 20582632673. The reversal of 20582632672 is 27623628502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20582632673) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6561772 + ... + 6564907.

It is an arithmetic number, because the mean of its divisors is an integer number (1309386330).

Almost surely, 220582632672 is an apocalyptic number.

It is an amenable number.

20582632672 is an abundant number, since it is smaller than the sum of its proper divisors (26555275208).

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

20582632672 is a wasteful number, since it uses less digits than its factorization.

20582632672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13126703 (or 13126688 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 43.

The spelling of 20582632672 in words is "twenty billion, five hundred eighty-two million, six hundred thirty-two thousand, six hundred seventy-two".

Divisors: 1 2 4 7 8 14 16 28 32 49 56 98 112 196 224 392 784 1568 13126679 26253358 52506716 91886753 105013432 183773506 210026864 367547012 420053728 643207271 735094024 1286414542 1470188048 2572829084 2940376096 5145658168 10291316336 20582632672