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9880047 = 321097783
BaseRepresentation
bin100101101100…
…000111101111
3200120221212200
4211230013233
510012130142
6551432543
7146656542
oct45540757
920527780
109880047
115639031
123385753
13207c0a8
141452859
15d0264c
hex96c1ef

9880047 has 6 divisors (see below), whose sum is σ = 14271192. Its totient is φ = 6586692.

The previous prime is 9880037. The next prime is 9880061. The reversal of 9880047 is 7400889.

It is not a de Polignac number, because 9880047 - 26 = 9879983 is a prime.

It is a super-3 number, since 3×98800473 (a number of 22 digits) contains 333 as substring.

9880047 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 9879993 and 9880020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9880027) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 548883 + ... + 548900.

It is an arithmetic number, because the mean of its divisors is an integer number (2378532).

Almost surely, 29880047 is an apocalyptic number.

9880047 is a deficient number, since it is larger than the sum of its proper divisors (4391145).

9880047 is a wasteful number, since it uses less digits than its factorization.

9880047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1097789 (or 1097786 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 9880047 is about 3143.2542054374. The cubic root of 9880047 is about 214.5785651206.

The spelling of 9880047 in words is "nine million, eight hundred eighty thousand, forty-seven".

Divisors: 1 3 9 1097783 3293349 9880047