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68877220283058 = 231110724091404849
BaseRepresentation
bin11111010100100101110100…
…01111111000001010110010
3100000212121010220111111000210
433222102322033320022302
533011441021343024213
6402253431433324550
720336133504351405
oct1752227217701262
9300777126444023
1068877220283058
111aa45735251690
127884a49866756
132c5812b6a8aa5
141301964c51d3c
157e69c42490c3
hex3ea4ba3f82b2

68877220283058 has 64 divisors (see below), whose sum is σ = 151688705702400. Its totient is φ = 20675911238400.

The previous prime is 68877220282879. The next prime is 68877220283063. The reversal of 68877220283058 is 85038202277886.

It is a super-3 number, since 3×688772202830583 (a number of 42 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 68877220283058.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 169928218 + ... + 170333066.

It is an arithmetic number, because the mean of its divisors is an integer number (2370136026600).

Almost surely, 268877220283058 is an apocalyptic number.

68877220283058 is an abundant number, since it is smaller than the sum of its proper divisors (82811485419342).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68877220283058 is a wasteful number, since it uses less digits than its factorization.

68877220283058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429063.

The product of its (nonzero) digits is 144506880, while the sum is 66.

The spelling of 68877220283058 in words is "sixty-eight trillion, eight hundred seventy-seven billion, two hundred twenty million, two hundred eighty-three thousand, fifty-eight".

Divisors: 1 2 3 6 11 22 33 66 107 214 321 642 1177 2354 3531 7062 24091 48182 72273 144546 265001 404849 530002 795003 809698 1214547 1590006 2429094 2577737 4453339 5155474 7733211 8906678 13360017 15466422 26720034 28355107 43318843 56710214 85065321 86637686 129956529 170130642 259913058 476507273 953014546 1429521819 2859043638 9753217259 19506434518 29259651777 58519303554 107285389849 214570779698 321856169547 643712339094 1043594246713 2087188493426 3130782740139 6261565480278 11479536713843 22959073427686 34438610141529 68877220283058