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20652056070 = 235688401869
BaseRepresentation
bin10011001110111101…
…010101111000000110
31222022021111011000120
4103032331111320012
5314243411243240
613253141122410
71330530403002
oct231675257006
958267434016
1020652056070
118838602438
1240043b9406
131c417cb729
14ddcb3d702
1580d11cad0
hex4cef55e06

20652056070 has 16 divisors (see below), whose sum is σ = 49564934640. Its totient is φ = 5507214944.

The previous prime is 20652056057. The next prime is 20652056071. The reversal of 20652056070 is 7065025602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20652056071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 344200905 + ... + 344200964.

It is an arithmetic number, because the mean of its divisors is an integer number (3097808415).

Almost surely, 220652056070 is an apocalyptic number.

20652056070 is an abundant number, since it is smaller than the sum of its proper divisors (28912878570).

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

20652056070 is a wasteful number, since it uses less digits than its factorization.

20652056070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688401879.

The product of its (nonzero) digits is 25200, while the sum is 33.

The spelling of 20652056070 in words is "twenty billion, six hundred fifty-two million, fifty-six thousand, seventy".

Divisors: 1 2 3 5 6 10 15 30 688401869 1376803738 2065205607 3442009345 4130411214 6884018690 10326028035 20652056070