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19750104 = 23321122267
BaseRepresentation
bin100101101010…
…1110011011000
31101011102001100
41023111303120
520024000404
61543151400
7326605323
oct113256330
941142040
1019750104
111016a600
126745560
13412676a
1428a17ba
151b01d39
hex12d5cd8

19750104 has 72 divisors (see below), whose sum is σ = 58820580. Its totient is φ = 5982240.

The previous prime is 19750091. The next prime is 19750109. The reversal of 19750104 is 40105791.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19750109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 7579 + ... + 9845.

Almost surely, 219750104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19750104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29410290).

19750104 is an abundant number, since it is smaller than the sum of its proper divisors (39070476).

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

19750104 is a wasteful number, since it uses less digits than its factorization.

19750104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2301 (or 2283 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 19750104 is about 4444.1089095566. The cubic root of 19750104 is about 270.3064832479.

Adding to 19750104 its reverse (40105791), we get a palindrome (59855895).

The spelling of 19750104 in words is "nineteen million, seven hundred fifty thousand, one hundred four".

Divisors: 1 2 3 4 6 8 9 11 12 18 22 24 33 36 44 66 72 88 99 121 132 198 242 264 363 396 484 726 792 968 1089 1452 2178 2267 2904 4356 4534 6801 8712 9068 13602 18136 20403 24937 27204 40806 49874 54408 74811 81612 99748 149622 163224 199496 224433 274307 299244 448866 548614 598488 822921 897732 1097228 1645842 1795464 2194456 2468763 3291684 4937526 6583368 9875052 19750104