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988000000 = 28561319
BaseRepresentation
bin111010111000111…
…010111100000000
32112212002121012121
4322320322330000
54010412000000
6242012134024
733324601321
oct7270727400
92485077177
10988000000
11467778029
12236a67314
131298c81b0
1495306448
155bb10b1a
hex3ae3af00

988000000 has 252 divisors, whose sum is σ = 2794495480. Its totient is φ = 345600000.

The previous prime is 987999997. The next prime is 988000007. The reversal of 988000000 is 889.

988000000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×9880000002 = 1952288000000000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (988000007) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 51999991 + ... + 52000009.

Almost surely, 2988000000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 988000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1397247740).

988000000 is an abundant number, since it is smaller than the sum of its proper divisors (1806495480).

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

988000000 is an frugal number, since it uses more digits than its factorization.

988000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78 (or 39 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 988000000 is about 31432.4672910034. The cubic root of 988000000 is about 995.9838924724.

Adding to 988000000 its reverse (889), we get a palindrome (988000889).

It can be divided in two parts, 98 and 8000000, that multiplied together give a square (784000000 = 280002).

The spelling of 988000000 in words is "nine hundred eighty-eight million", and thus it is an aban number.