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51934146706225 = 5272109218892
BaseRepresentation
bin10111100111011110111000…
…10111011011101100110001
320210212212002222102011210101
423303233130113123230301
523301342113024044400
6302242115001432401
713640055366234100
oct1363573427335461
9223785088364711
1051934146706225
1115603169993643
1259a922879b701
1322c94a4979014
14cb78aa0a4037
15600dd65d056a
hex2f3bdc5dbb31

51934146706225 has 81 divisors (see below), whose sum is σ = 75645976978467. Its totient is φ = 35266591503360.

The previous prime is 51934146706171. The next prime is 51934146706231. The reversal of 51934146706225 is 52260764143915.

The square root of 51934146706225 is 7206535.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 13 ways, for example, as 23775756329521 + 28158390376704 = 4876039^2 + 5306448^2 .

It is not a de Polignac number, because 51934146706225 - 245 = 16749774617393 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 27492930081 + ... + 27492931969.

Almost surely, 251934146706225 is an apocalyptic number.

51934146706225 is the 7206535-th square number.

51934146706225 is the 3603268-th centered octagonal number.

It is an amenable number.

51934146706225 is a deficient number, since it is larger than the sum of its proper divisors (23711830272242).

51934146706225 is an frugal number, since it uses more digits than its factorization.

51934146706225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4020 (or 2010 counting only the distinct ones).

The product of its (nonzero) digits is 10886400, while the sum is 55.

The spelling of 51934146706225 in words is "fifty-one trillion, nine hundred thirty-four billion, one hundred forty-six million, seven hundred six thousand, two hundred twenty-five".

Divisors: 1 5 7 25 35 49 109 175 245 545 763 1225 1889 2725 3815 5341 9445 11881 13223 19075 26705 47225 59405 66115 83167 92561 133525 205901 297025 330575 415835 462805 582169 1029505 1441307 2079175 2314025 2910845 3568321 5147525 7206535 10089149 14554225 17841605 22443209 24978247 36032675 50445745 89208025 112216045 124891235 157102463 174847729 252228725 388946989 561080225 624456175 785512315 874238645 1099717241 1944734945 2722628923 3927561575 4371193225 5498586205 9723674725 13613144615 19058402461 27492931025 42395221801 68065723075 95292012305 211976109005 296766552607 476460061525 1059880545025 1483832763035 2077365868249 7419163815175 10386829341245 51934146706225