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7999990010101 = 17719654502987
BaseRepresentation
bin111010001101010010010…
…0100000001000011110101
31001022210101001120212022001
41310122210210001003311
52022032434420310401
625003051125535301
71453660132051165
oct164324444010365
931283331525261
107999990010101
11260485a88a721
12a92550574531
1346051b80708b
141d92b71dc5a5
15dd171140601
hex746a49010f5

7999990010101 has 8 divisors (see below), whose sum is σ = 8482358724480. Its totient is φ = 7518930303168.

The previous prime is 7999990010087. The next prime is 7999990010179. The reversal of 7999990010101 is 1010100999997.

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 7999990010101 - 29 = 7999990009589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7999990016101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 327239271 + ... + 327263716.

It is an arithmetic number, because the mean of its divisors is an integer number (1060294840560).

Almost surely, 27999990010101 is an apocalyptic number.

It is an amenable number.

7999990010101 is a deficient number, since it is larger than the sum of its proper divisors (482368714379).

7999990010101 is a wasteful number, since it uses less digits than its factorization.

7999990010101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654503723.

The product of its (nonzero) digits is 413343, while the sum is 55.

The spelling of 7999990010101 in words is "seven trillion, nine hundred ninety-nine billion, nine hundred ninety million, ten thousand, one hundred one".

Divisors: 1 17 719 12223 654502987 11126550779 470587647653 7999990010101