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19967148068 = 227713112431
BaseRepresentation
bin10010100110001000…
…101000000000100100
31220112112201012212112
4102212020220000210
5311343042214233
613101153140152
71304542646450
oct224610500044
956475635775
1019967148068
118516a3096a
123a52b5a658
131b6294481a
14d75bb3660
157bce2c048
hex4a6228024

19967148068 has 12 divisors (see below), whose sum is σ = 39934296192. Its totient is φ = 8557349160.

The previous prime is 19967148049. The next prime is 19967148107. The reversal of 19967148068 is 86084176991.

19967148068 is an admirable number.

It is a super-3 number, since 3×199671480683 (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 19967147998 and 19967148016.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 356556188 + ... + 356556243.

It is an arithmetic number, because the mean of its divisors is an integer number (3327858016).

Almost surely, 219967148068 is an apocalyptic number.

It is an amenable number.

19967148068 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

19967148068 is a wasteful number, since it uses less digits than its factorization.

19967148068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713112442 (or 713112440 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 59.

The spelling of 19967148068 in words is "nineteen billion, nine hundred sixty-seven million, one hundred forty-eight thousand, sixty-eight".

Divisors: 1 2 4 7 14 28 713112431 1426224862 2852449724 4991787017 9983574034 19967148068