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20705033271275 = 521943589543729
BaseRepresentation
bin1001011010100110001000…
…01001110011011111101011
32201022101022100221120120022
410231103010021303133223
510203212402004140100
6112011432211551055
74234614011654453
oct455230411633753
981271270846508
1020705033271275
116662a56558961
1223a49358bb48b
13b7262645b4b2
145181b3c04d63
1525d8bac67e85
hex12d4c42737eb

20705033271275 has 12 divisors (see below), whose sum is σ = 27025517112600. Its totient is φ = 15692235742080.

The previous prime is 20705033271269. The next prime is 20705033271323. The reversal of 20705033271275 is 57217233050702.

It is not a de Polignac number, because 20705033271275 - 228 = 20704764835819 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21794771390 + ... + 21794772339.

It is an arithmetic number, because the mean of its divisors is an integer number (2252126426050).

Almost surely, 220705033271275 is an apocalyptic number.

20705033271275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20705033271275 is a deficient number, since it is larger than the sum of its proper divisors (6320483841325).

20705033271275 is a wasteful number, since it uses less digits than its factorization.

20705033271275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43589543758 (or 43589543753 counting only the distinct ones).

The product of its (nonzero) digits is 617400, while the sum is 44.

The spelling of 20705033271275 in words is "twenty trillion, seven hundred five billion, thirty-three million, two hundred seventy-one thousand, two hundred seventy-five".

Divisors: 1 5 19 25 95 475 43589543729 217947718645 828201330851 1089738593225 4141006654255 20705033271275