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1998200076 = 223166516673
BaseRepresentation
bin111011100011010…
…0001110100001100
312011020222002012020
41313012201310030
513043014400301
6530140210140
7100342264125
oct16706416414
95136862166
101998200076
11935a28324
12479239950
1325ac97012
1414d54b04c
15ba659436
hex771a1d0c

1998200076 has 12 divisors (see below), whose sum is σ = 4662466872. Its totient is φ = 666066688.

The previous prime is 1998200051. The next prime is 1998200081. The reversal of 1998200076 is 6700028991.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83258325 + ... + 83258348.

It is an arithmetic number, because the mean of its divisors is an integer number (388538906).

Almost surely, 21998200076 is an apocalyptic number.

It is an amenable number.

1998200076 is an abundant number, since it is smaller than the sum of its proper divisors (2664266796).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1998200076 is a wasteful number, since it uses less digits than its factorization.

1998200076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166516680 (or 166516678 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 1998200076 is about 44701.2312582103. The cubic root of 1998200076 is about 1259.5429760989.

The spelling of 1998200076 in words is "one billion, nine hundred ninety-eight million, two hundred thousand, seventy-six".

Divisors: 1 2 3 4 6 12 166516673 333033346 499550019 666066692 999100038 1998200076