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19254030050 = 252757508693
BaseRepresentation
bin10001111011101000…
…010010111011100010
31211200211212001212002
4101323220102323202
5303413012430200
612502320404002
71251063361253
oct217350227342
954624761762
1019254030050
118190441832
123894176602
131a7ac915b8
14d091c2b2a
1577a517bd5
hex47ba12ee2

19254030050 has 24 divisors (see below), whose sum is σ = 35859874836. Its totient is φ = 7691423040.

The previous prime is 19254030023. The next prime is 19254030053. The reversal of 19254030050 is 5003045291.

It can be written as a sum of positive squares in 6 ways, for example, as 14822332009 + 4431698041 = 121747^2 + 66571^2 .

It is a junction number, because it is equal to n+sod(n) for n = 19254029995 and 19254030022.

It is not an unprimeable number, because it can be changed into a prime (19254030053) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 216497 + ... + 292196.

Almost surely, 219254030050 is an apocalyptic number.

19254030050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19254030050 is a deficient number, since it is larger than the sum of its proper divisors (16605844786).

19254030050 is a wasteful number, since it uses less digits than its factorization.

19254030050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509462 (or 509457 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

The spelling of 19254030050 in words is "nineteen billion, two hundred fifty-four million, thirty thousand, fifty".

Divisors: 1 2 5 10 25 50 757 1514 3785 7570 18925 37850 508693 1017386 2543465 5086930 12717325 25434650 385080601 770161202 1925403005 3850806010 9627015025 19254030050