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988288828 = 221427173141
BaseRepresentation
bin111010111010000…
…001011100111100
32112212122021101221
4322322001130330
54011000220303
6242022243124
733330213352
oct7272013474
92485567357
10988288828
1146795502a
12236b864a4
131299997b7
149537d7d2
155bb6b4bd
hex3ae8173c

988288828 has 12 divisors (see below), whose sum is σ = 1730727432. Its totient is φ = 493795280.

The previous prime is 988288801. The next prime is 988288837. The reversal of 988288828 is 828882889.

It is a super-2 number, since 2×9882888282 = 1953429615099227168, which contains 22 as substring.

It is a congruent number.

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, 80863 + ... + 92278.

It is an arithmetic number, because the mean of its divisors is an integer number (144227286).

Almost surely, 2988288828 is an apocalyptic number.

It is an amenable number.

988288828 is a deficient number, since it is larger than the sum of its proper divisors (742438604).

988288828 is a wasteful number, since it uses less digits than its factorization.

988288828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174572 (or 174570 counting only the distinct ones).

The product of its digits is 9437184, while the sum is 61.

The square root of 988288828 is about 31437.0613766618. The cubic root of 988288828 is about 996.0809370096.

The spelling of 988288828 in words is "nine hundred eighty-eight million, two hundred eighty-eight thousand, eight hundred twenty-eight".

Divisors: 1 2 4 1427 2854 5708 173141 346282 692564 247072207 494144414 988288828