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949978046398463 = 43197499585738371
BaseRepresentation
bin1101011111111111111111111…
…1111111111111111111111111
311121120121000101102102111221222
43113333333333333333333333
51444003420014334222323
613204233520104143555
7404045435403110225
oct32777777777777777
94546530342374858
10949978046398463
11255768477351805
128a668139767bbb
1331a0c7122a9734
1412a8327b768b15
1574c61981759c8
hex35fffffffffff

949978046398463 has 32 divisors (see below), whose sum is σ = 979155514656000. Its totient is φ = 921144093649920.

The previous prime is 949978046398429. The next prime is 949978046398487. The reversal of 949978046398463 is 364893640879949.

It is a Cunningham number, because it is equal to 983043-1.

It is a cyclic number.

It is not a de Polignac number, because 949978046398463 - 28 = 949978046398207 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (949978046358463) 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, 24757689668 + ... + 24757728038.

It is an arithmetic number, because the mean of its divisors is an integer number (30598609833000).

Almost surely, 2949978046398463 is an apocalyptic number.

949978046398463 is a deficient number, since it is larger than the sum of its proper divisors (29177468257537).

949978046398463 is a wasteful number, since it uses less digits than its factorization.

949978046398463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44967.

The product of its (nonzero) digits is 60949905408, while the sum is 89.

The spelling of 949978046398463 in words is "nine hundred forty-nine trillion, nine hundred seventy-eight billion, forty-six million, three hundred ninety-eight thousand, four hundred sixty-three".

Divisors: 1 43 197 499 5857 8471 21457 38371 98303 251851 1153829 1649953 2922643 4227029 7559087 19147129 49614647 125673649 224738947 325040741 575760671 823326547 3771984413 9663774721 24757708853 44273572559 112144734553 162195329759 1903763620037 4822223585779 22092512706941 949978046398463