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19499068 = 2217286751
BaseRepresentation
bin100101001100…
…0100000111100
31100200122200201
41022120200330
514442432233
61533533244
7324511411
oct112304074
940618621
1019499068
1110008a36
126644224
134069414
142838108
151aa277d
hex129883c

19499068 has 12 divisors (see below), whose sum is σ = 36130752. Its totient is φ = 9176000.

The previous prime is 19499057. The next prime is 19499089. The reversal of 19499068 is 86099491.

It is a congruent number.

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, 143308 + ... + 143443.

It is an arithmetic number, because the mean of its divisors is an integer number (3010896).

Almost surely, 219499068 is an apocalyptic number.

It is an amenable number.

19499068 is a deficient number, since it is larger than the sum of its proper divisors (16631684).

19499068 is a wasteful number, since it uses less digits than its factorization.

19499068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286772 (or 286770 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 46.

The square root of 19499068 is about 4415.7749036834. The cubic root of 19499068 is about 269.1563423701.

The spelling of 19499068 in words is "nineteen million, four hundred ninety-nine thousand, sixty-eight".

Divisors: 1 2 4 17 34 68 286751 573502 1147004 4874767 9749534 19499068