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30871022792550 = 2352593488251163
BaseRepresentation
bin1110000010011101110000…
…10110001110111101100110
311001022020111122202011221220
413001032320112032331212
513021242323313330200
6145353541352321210
76334233503101323
oct701167026167546
9131266448664856
1030871022792550
119922366619016
1235670170a3206
13142c1816c0955
1478a2460c9b4a
1538805d3b14a0
hex1c13b858ef66

30871022792550 has 48 divisors (see below), whose sum is σ = 77857765980480. Its totient is φ = 8092742695840.

The previous prime is 30871022792513. The next prime is 30871022792677. The reversal of 30871022792550 is 5529722017803.

It is a junction number, because it is equal to n+sod(n) for n = 30871022792493 and 30871022792502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1744116732 + ... + 1744134431.

It is an arithmetic number, because the mean of its divisors is an integer number (1622036791260).

Almost surely, 230871022792550 is an apocalyptic number.

30871022792550 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30871022792550 is an abundant number, since it is smaller than the sum of its proper divisors (46986743187930).

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

30871022792550 is a wasteful number, since it uses less digits than its factorization.

30871022792550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3488251237 (or 3488251232 counting only the distinct ones).

The product of its (nonzero) digits is 2116800, while the sum is 51.

The spelling of 30871022792550 in words is "thirty trillion, eight hundred seventy-one billion, twenty-two million, seven hundred ninety-two thousand, five hundred fifty".

Divisors: 1 2 3 5 6 10 15 25 30 50 59 75 118 150 177 295 354 590 885 1475 1770 2950 4425 8850 3488251163 6976502326 10464753489 17441255815 20929506978 34882511630 52323767445 87206279075 104647534890 174412558150 205806818617 261618837225 411613637234 523237674450 617420455851 1029034093085 1234840911702 2058068186170 3087102279255 5145170465425 6174204558510 10290340930850 15435511396275 30871022792550