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51797799949269 = 31133125673184711
BaseRepresentation
bin10111100011100000111010…
…11101110101001111010101
320210101211011201221021101010
423301300131131311033111
523242123343241334034
6302055325241322433
713624160525022123
oct1361603535651725
9223354151837333
1051797799949269
1115560361784030
125986916496419
1322b9685c196ca
14cb1053b24913
155ec5a648b3e9
hex2f1c1d7753d5

51797799949269 has 32 divisors (see below), whose sum is σ = 75573227271168. Its totient is φ = 31296375792000.

The previous prime is 51797799949183. The next prime is 51797799949321. The reversal of 51797799949269 is 96294999779715.

It is not a de Polignac number, because 51797799949269 - 232 = 51793504981973 is a prime.

It is a super-2 number, since 2×517977999492692 (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51797799949069) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 280333824 + ... + 280518534.

It is an arithmetic number, because the mean of its divisors is an integer number (2361663352224).

Almost surely, 251797799949269 is an apocalyptic number.

It is an amenable number.

51797799949269 is a deficient number, since it is larger than the sum of its proper divisors (23775427321899).

51797799949269 is a wasteful number, since it uses less digits than its factorization.

51797799949269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210729.

The product of its digits is 43748223120, while the sum is 93.

The spelling of 51797799949269 in words is "fifty-one trillion, seven hundred ninety-seven billion, seven hundred ninety-nine million, nine hundred forty-nine thousand, two hundred sixty-nine".

Divisors: 1 3 11 33 331 993 3641 10923 25673 77019 184711 282403 554133 847209 2031821 6095463 8497763 25493289 61139341 93475393 183418023 280426179 672532751 2017598253 4742085503 14226256509 52162940533 156488821599 1569630301493 4708890904479 17265933316423 51797799949269