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988871492 = 227196727743
BaseRepresentation
bin111010111100001…
…111101101000100
32112220201212200002
4322330033231010
54011122341432
6242042540432
733335161160
oct7274175504
92486655602
10988871492
11468212874
12237207718
13129b41a7b
1495491ca0
155bc33e62
hex3af0fb44

988871492 has 48 divisors (see below), whose sum is σ = 2112983040. Its totient is φ = 395489952.

The previous prime is 988871491. The next prime is 988871503. The reversal of 988871492 is 294178889.

It is not an unprimeable number, because it can be changed into a prime (988871491) 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 15 ways as a sum of consecutive naturals, for example, 21773 + ... + 49515.

It is an arithmetic number, because the mean of its divisors is an integer number (44020480).

Almost surely, 2988871492 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 988871492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1056491520).

988871492 is an abundant number, since it is smaller than the sum of its proper divisors (1124111548).

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

988871492 is a wasteful number, since it uses less digits than its factorization.

988871492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27840 (or 27838 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 56.

The square root of 988871492 is about 31446.3271623253. The cubic root of 988871492 is about 996.2766512131.

The spelling of 988871492 in words is "nine hundred eighty-eight million, eight hundred seventy-one thousand, four hundred ninety-two".

Divisors: 1 2 4 7 14 19 28 38 67 76 133 134 266 268 469 532 938 1273 1876 2546 5092 8911 17822 27743 35644 55486 110972 194201 388402 527117 776804 1054234 1858781 2108468 3689819 3717562 7379638 7435124 13011467 14759276 26022934 35316839 52045868 70633678 141267356 247217873 494435746 988871492