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68768273152 = 28318665357
BaseRepresentation
bin100000000001011101…
…0001001001100000000
320120111120122020021201
41000002322021030000
52111314134220102
651331450430544
74653066451165
oct1000272111400
9216446566251
1068768273152
11271899964a7
12113b2432454
13663c1c51b7
1434851c806c
151bc7409987
hex1002e89300

68768273152 has 36 divisors (see below), whose sum is σ = 141695934016. Its totient is φ = 33274967040.

The previous prime is 68768273107. The next prime is 68768273177. The reversal of 68768273152 is 25137286786.

It is a junction number, because it is equal to n+sod(n) for n = 68768273093 and 68768273102.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4324743 + ... + 4340614.

Almost surely, 268768273152 is an apocalyptic number.

68768273152 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

68768273152 is an abundant number, since it is smaller than the sum of its proper divisors (72927660864).

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

68768273152 is an equidigital number, since it uses as much as digits as its factorization.

68768273152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8665404 (or 8665390 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 55.

The spelling of 68768273152 in words is "sixty-eight billion, seven hundred sixty-eight million, two hundred seventy-three thousand, one hundred fifty-two".

Divisors: 1 2 4 8 16 31 32 62 64 124 128 248 256 496 992 1984 3968 7936 8665357 17330714 34661428 69322856 138645712 268626067 277291424 537252134 554582848 1074504268 1109165696 2149008536 2218331392 4298017072 8596034144 17192068288 34384136576 68768273152