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12995620993 = 117112798677
BaseRepresentation
bin11000001101001100…
…10111000010000001
31020112200112221121001
430012212113002001
5203103334332433
65545313132001
7640020645565
oct140646270201
936480487531
1012995620993
115569764443
12262825a001
1312c14ca784
148b3d496a5
15510d8957d
hex306997081

12995620993 has 8 divisors (see below), whose sum is σ = 13018388480. Its totient is φ = 12972875760.

The previous prime is 12995620951. The next prime is 12995620999. The reversal of 12995620993 is 39902659921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12995620993 - 217 = 12995489921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12995620999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1493371 + ... + 1502047.

It is an arithmetic number, because the mean of its divisors is an integer number (1627298560).

Almost surely, 212995620993 is an apocalyptic number.

It is an amenable number.

12995620993 is a deficient number, since it is larger than the sum of its proper divisors (22767487).

12995620993 is a wasteful number, since it uses less digits than its factorization.

12995620993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11127.

The product of its (nonzero) digits is 2361960, while the sum is 55.

The spelling of 12995620993 in words is "twelve billion, nine hundred ninety-five million, six hundred twenty thousand, nine hundred ninety-three".

Divisors: 1 1171 1279 8677 1497709 10160767 11097883 12995620993