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999995000007 = 3333331666669
BaseRepresentation
bin11101000110101000101…
…10001100010011000111
310112121011101000101210010
432203110112030103013
5112340442210000012
62043220311201303
7132150544152543
oct16432426142307
93477141011703
10999995000007
11356106120373
12141980376233
13733b7237a73
1436585904a23
151b02b0c9c3c
hexe8d458c4c7

999995000007 has 4 divisors (see below), whose sum is σ = 1333326666680. Its totient is φ = 666663333336.

The previous prime is 999994999999. The next prime is 999995000009. The reversal of 999995000007 is 700000599999.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 700000599999 = 3233333533333.

It is not a de Polignac number, because 999995000007 - 23 = 999994999999 is a prime.

It is the 999998-th Hogben number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999995000009) by changing a digit.

It is a nontrivial repunit in base 999997.

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 3 ways as a sum of consecutive naturals, for example, 166665833332 + ... + 166665833337.

It is an arithmetic number, because the mean of its divisors is an integer number (333331666670).

Almost surely, 2999995000007 is an apocalyptic number.

999995000007 is a deficient number, since it is larger than the sum of its proper divisors (333331666673).

999995000007 is a wasteful number, since it uses less digits than its factorization.

999995000007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333331666672.

The product of its (nonzero) digits is 2066715, while the sum is 57.

The spelling of 999995000007 in words is "nine hundred ninety-nine billion, nine hundred ninety-five million, seven", and thus it is an aban number.

Divisors: 1 3 333331666669 999995000007