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20600710221 = 3713611237057
BaseRepresentation
bin10011001011111001…
…011110010001001101
31222011200212111202110
4103023321132101031
5314142240211341
613244104414233
71326335101440
oct231371362115
958150774673
1020600710221
118811622553
123bab177379
131c33c91880
14dd5db5657
15808879216
hex4cbe5e44d

20600710221 has 32 divisors (see below), whose sum is σ = 34360523008. Its totient is φ = 10688163840.

The previous prime is 20600710181. The next prime is 20600710231. The reversal of 20600710221 is 12201700602.

It is not a de Polignac number, because 20600710221 - 27 = 20600710093 is a prime.

It is a super-2 number, since 2×206007102212 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20600710231) 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 31 ways as a sum of consecutive naturals, for example, 601876 + ... + 635181.

It is an arithmetic number, because the mean of its divisors is an integer number (1073766344).

Almost surely, 220600710221 is an apocalyptic number.

20600710221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20600710221 is a deficient number, since it is larger than the sum of its proper divisors (13759812787).

20600710221 is a wasteful number, since it uses less digits than its factorization.

20600710221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1237141.

The product of its (nonzero) digits is 336, while the sum is 21.

The spelling of 20600710221 in words is "twenty billion, six hundred million, seven hundred ten thousand, two hundred twenty-one".

Divisors: 1 3 7 13 21 39 61 91 183 273 427 793 1281 2379 5551 16653 1237057 3711171 8659399 16081741 25978197 48245223 75460477 112572187 226381431 337716561 528223339 980986201 1584670017 2942958603 6866903407 20600710221