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68936479962 = 23726719318133
BaseRepresentation
bin100000000110011101…
…1110011010011011010
320120221022011000122120
41000030323303103122
52112140214324322
651400300002110
74660211261100
oct1001473632332
9216838130576
1068936479962
1127265933799
121143a830336
136667cca25c
14349d691c70
151bd7083a5c
hex100cef34da

68936479962 has 96 divisors (see below), whose sum is σ = 163629029952. Its totient is φ = 19300571136.

The previous prime is 68936479933. The next prime is 68936479967. The reversal of 68936479962 is 26997463986.

It is not an unprimeable number, because it can be changed into a prime (68936479967) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3792648 + ... + 3810780.

It is an arithmetic number, because the mean of its divisors is an integer number (1704469062).

Almost surely, 268936479962 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68936479962, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81814514976).

68936479962 is an abundant number, since it is smaller than the sum of its proper divisors (94692549990).

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

68936479962 is a wasteful number, since it uses less digits than its factorization.

68936479962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18412 (or 18405 counting only the distinct ones).

The product of its digits is 211631616, while the sum is 69.

The spelling of 68936479962 in words is "sixty-eight billion, nine hundred thirty-six million, four hundred seventy-nine thousand, nine hundred sixty-two".

Divisors: 1 2 3 6 7 14 21 42 49 67 98 134 147 193 201 294 386 402 469 579 938 1158 1351 1407 2702 2814 3283 4053 6566 8106 9457 9849 12931 18133 18914 19698 25862 28371 36266 38793 54399 56742 77586 90517 108798 126931 181034 253862 271551 380793 543102 633619 761586 888517 1214911 1267238 1777034 1900857 2429822 2665551 3499669 3644733 3801714 5331102 6999338 7289466 8504377 10499007 17008754 20998014 24497683 25513131 48995366 51026262 59530639 73493049 119061278 146986098 171483781 178591917 234477823 342967562 357183834 468955646 514451343 703433469 1028902686 1406866938 1641344761 3282689522 4924034283 9848068566 11489413327 22978826654 34468239981 68936479962