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68519246576 = 24114137325457
BaseRepresentation
bin111111110100000100…
…001011101011110000
320112212020001101001012
4333310010023223300
52110311411342301
651251033130052
74643653662164
oct776404135360
9215766041035
1068519246576
1127071368110
1211342b59928
1365cc7338b1
1434600c2ca4
151bb0618ebb
hexff410baf0

68519246576 has 80 divisors (see below), whose sum is σ = 148760666208. Its totient is φ = 30302822400.

The previous prime is 68519246563. The next prime is 68519246591. The reversal of 68519246576 is 67564291586.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2678840 + ... + 2704296.

Almost surely, 268519246576 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68519246576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74380333104).

68519246576 is an abundant number, since it is smaller than the sum of its proper divisors (80241419632).

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

68519246576 is a wasteful number, since it uses less digits than its factorization.

68519246576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25890 (or 25884 counting only the distinct ones).

The product of its digits is 21772800, while the sum is 59.

The spelling of 68519246576 in words is "sixty-eight billion, five hundred nineteen million, two hundred forty-six thousand, five hundred seventy-six".

Divisors: 1 2 4 8 11 16 22 41 44 82 88 164 176 328 373 451 656 746 902 1492 1804 2984 3608 4103 5968 7216 8206 15293 16412 25457 30586 32824 50914 61172 65648 101828 122344 168223 203656 244688 280027 336446 407312 560054 672892 1043737 1120108 1345784 2087474 2240216 2691568 4174948 4480432 8349896 9495461 11481107 16699792 18990922 22962214 37981844 45924428 75963688 91848856 104450071 151927376 183697712 208900142 389313901 417800284 778627802 835600568 1557255604 1671201136 3114511208 4282452911 6229022416 8564905822 17129811644 34259623288 68519246576