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999998000002 = 241109111881629
BaseRepresentation
bin11101000110101001000…
…01101000101110000010
310112121011120122211000001
432203110201220232002
5112340443442000002
62043220455350214
7132150611516101
oct16432441505602
93477146584001
10999998000002
1135610788a301
1214198138236a
13733b7a48401
1436586086038
151b02b4bda87
hexe8d4868b82

999998000002 has 16 divisors (see below), whose sum is σ = 1550679391800. Its totient is φ = 483328632960.

The previous prime is 999997999981. The next prime is 999998000009. The reversal of 999998000002 is 200000899999.

It is a Cunningham number, because it is equal to 9999992+1.

It can be written as a sum of positive squares in 4 ways, for example, as 874844079561 + 125153920441 = 935331^2 + 353771^2 .

It is a junction number, because it is equal to n+sod(n) for n = 999997999898 and 999997999907.

It is not an unprimeable number, because it can be changed into a prime (999998000009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55931877 + ... + 55949752.

Almost surely, 2999998000002 is an apocalyptic number.

999998000002 is a deficient number, since it is larger than the sum of its proper divisors (550681391798).

999998000002 is a wasteful number, since it uses less digits than its factorization.

999998000002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111881781.

The product of its (nonzero) digits is 944784, while the sum is 55.

The spelling of 999998000002 in words is "nine hundred ninety-nine billion, nine hundred ninety-eight million, two", and thus it is an aban number.