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19680658362 = 2321764499973
BaseRepresentation
bin10010010101000011…
…110000001110111010
31212210120122000212200
4102111003300032322
5310301222031422
613012520451030
71264463556501
oct222503601672
955716560780
1019680658362
11838a244a12
123993019a76
131b184972a1
14d49b19838
157a2bdb2ac
hex4950f03ba

19680658362 has 48 divisors (see below), whose sum is σ = 45161274600. Its totient is φ = 6172747776.

The previous prime is 19680658351. The next prime is 19680658367. The reversal of 19680658362 is 26385608691.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 19215781641 + 464876721 = 138621^2 + 21561^2 .

It is a junction number, because it is equal to n+sod(n) for n = 19680658299 and 19680658308.

It is not an unprimeable number, because it can be changed into a prime (19680658367) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1968408 + ... + 1978380.

Almost surely, 219680658362 is an apocalyptic number.

19680658362 is an abundant number, since it is smaller than the sum of its proper divisors (25480616238).

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

19680658362 is a wasteful number, since it uses less digits than its factorization.

19680658362 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16447 (or 16444 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 54.

The spelling of 19680658362 in words is "nineteen billion, six hundred eighty million, six hundred fifty-eight thousand, three hundred sixty-two".

Divisors: 1 2 3 6 9 17 18 34 51 102 153 306 6449 9973 12898 19347 19946 29919 38694 58041 59838 89757 109633 116082 169541 179514 219266 328899 339082 508623 657798 986697 1017246 1525869 1973394 3051738 64315877 128631754 192947631 385895262 578842893 1093369909 1157685786 2186739818 3280109727 6560219454 9840329181 19680658362