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988520 = 235131901
BaseRepresentation
bin11110001010101101000
31212012222212
43301111220
5223113040
633104252
711254661
oct3612550
91765885
10988520
11615765
123b8088
13287c30
141ba368
15147d65
hexf1568

988520 has 32 divisors (see below), whose sum is σ = 2396520. Its totient is φ = 364800.

The previous prime is 988511. The next prime is 988541. The reversal of 988520 is 25889.

988520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 376996 + 611524 = 614^2 + 782^2 .

It is a nialpdrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 431 + ... + 1470.

2988520 is an apocalyptic number.

It is an amenable number.

988520 is an abundant number, since it is smaller than the sum of its proper divisors (1408000).

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

988520 is a wasteful number, since it uses less digits than its factorization.

988520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1925 (or 1921 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 988520 is about 994.2434309564. The cubic root of 988520 is about 99.6158595843.

The spelling of 988520 in words is "nine hundred eighty-eight thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 104 130 260 520 1901 3802 7604 9505 15208 19010 24713 38020 49426 76040 98852 123565 197704 247130 494260 988520