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51230771050 = 2521024615421
BaseRepresentation
bin101111101101100101…
…111000011101101010
311220020100201211002211
4233231211320131222
51314410034133200
635311325115334
73462355240354
oct575545703552
9156210654084
1051230771050
111a7aa486608
129b190b8b4a
134aa5a49114
14269dd900d4
1514ec95caba
hexbed97876a

51230771050 has 12 divisors (see below), whose sum is σ = 95289234246. Its totient is φ = 20492308400.

The previous prime is 51230771023. The next prime is 51230771051. The reversal of 51230771050 is 5017703215.

It can be written as a sum of positive squares in 3 ways, for example, as 28892180529 + 22338590521 = 169977^2 + 149461^2 .

It is not an unprimeable number, because it can be changed into a prime (51230771051) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 512307661 + ... + 512307760.

Almost surely, 251230771050 is an apocalyptic number.

51230771050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51230771050 is a deficient number, since it is larger than the sum of its proper divisors (44058463196).

51230771050 is a wasteful number, since it uses less digits than its factorization.

51230771050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1024615433 (or 1024615428 counting only the distinct ones).

The product of its (nonzero) digits is 7350, while the sum is 31.

The spelling of 51230771050 in words is "fifty-one billion, two hundred thirty million, seven hundred seventy-one thousand, fifty".

Divisors: 1 2 5 10 25 50 1024615421 2049230842 5123077105 10246154210 25615385525 51230771050