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20614512486 = 237356898273
BaseRepresentation
bin10011001100101110…
…000111111101100110
31222012122211201220110
4103030232013331212
5314204303344421
613245320313450
71326563315331
oct231456077546
958178751813
1020614512486
11881939a387
123bb3912886
131c36ab4ca9
14dd7b69618
15809ba3a76
hex4ccb87f66

20614512486 has 32 divisors (see below), whose sum is σ = 41806205280. Its totient is φ = 6775363584.

The previous prime is 20614512449. The next prime is 20614512487. The reversal of 20614512486 is 68421541602.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20614512487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2487646 + ... + 2495918.

It is an arithmetic number, because the mean of its divisors is an integer number (1306443915).

Almost surely, 220614512486 is an apocalyptic number.

20614512486 is an abundant number, since it is smaller than the sum of its proper divisors (21191692794).

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

20614512486 is a wasteful number, since it uses less digits than its factorization.

20614512486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14040.

The product of its (nonzero) digits is 92160, while the sum is 39.

The spelling of 20614512486 in words is "twenty billion, six hundred fourteen million, five hundred twelve thousand, four hundred eighty-six".

Divisors: 1 2 3 6 73 146 219 438 5689 8273 11378 16546 17067 24819 34134 49638 415297 603929 830594 1207858 1245891 1811787 2491782 3623574 47065097 94130194 141195291 282390582 3435752081 6871504162 10307256243 20614512486