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68974191325731 = 3711932297730447
BaseRepresentation
bin11111010111011010011100…
…01011000011001000100011
3100001012212102222121211221210
433223231032023003020203
533020033120434410411
6402410150035321203
720346135521540466
oct1753551613031043
9301185388554853
1068974191325731
111aa8287693926a
12789b7b1150203
132c64313805793
1413065238cd2dd
157e929c5beca6
hex3ebb4e2c3223

68974191325731 has 32 divisors (see below), whose sum is σ = 93785035327488. Its totient is φ = 45080555950080.

The previous prime is 68974191325693. The next prime is 68974191325783. The reversal of 68974191325731 is 13752319147986.

It is not a de Polignac number, because 68974191325731 - 214 = 68974191309347 is a prime.

It is a super-2 number, since 2×689741913257312 (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68974191325231) 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, 94062150 + ... + 94792596.

It is an arithmetic number, because the mean of its divisors is an integer number (2930782353984).

Almost surely, 268974191325731 is an apocalyptic number.

68974191325731 is a deficient number, since it is larger than the sum of its proper divisors (24810844001757).

68974191325731 is a wasteful number, since it uses less digits than its factorization.

68974191325731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733011.

The product of its digits is 68584320, while the sum is 66.

The spelling of 68974191325731 in words is "sixty-eight trillion, nine hundred seventy-four billion, one hundred ninety-one million, three hundred twenty-five thousand, seven hundred thirty-one".

Divisors: 1 3 71 193 213 579 2297 6891 13703 41109 163087 443321 489261 730447 1329963 2191341 31475791 51861737 94427373 140976271 155585211 422928813 1677836759 5033510277 10009315241 30027945723 119126409889 323822494487 357379229667 971467483461 22991397108577 68974191325731