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2989139984120 = 235109843680321
BaseRepresentation
bin101011011111110110101…
…000000111111011111000
3101120202111022020022022202
4223133312220013323320
5342433224313442440
610205105243405332
7425646450434153
oct53376650077370
911522438208282
102989139984120
11a5276165a044
12403394b23848
13188b4a9085c4
14a4964864c9a
1552b4b106615
hex2b7f6a07ef8

2989139984120 has 32 divisors (see below), whose sum is σ = 6725636079120. Its totient is φ = 1195643351040.

The previous prime is 2989139984063. The next prime is 2989139984177. The reversal of 2989139984120 is 214899319892.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2989139984063) and next prime (2989139984177).

It is a congruent number.

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, 4053560 + ... + 4733880.

Almost surely, 22989139984120 is an apocalyptic number.

2989139984120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2989139984120 is an abundant number, since it is smaller than the sum of its proper divisors (3736496095000).

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

2989139984120 is a wasteful number, since it uses less digits than its factorization.

2989139984120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790175 (or 790171 counting only the distinct ones).

The product of its (nonzero) digits is 20155392, while the sum is 65.

The spelling of 2989139984120 in words is "two trillion, nine hundred eighty-nine billion, one hundred thirty-nine million, nine hundred eighty-four thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 109843 219686 439372 549215 680321 878744 1098430 1360642 2196860 2721284 3401605 4393720 5442568 6803210 13606420 27212840 74728499603 149456999206 298913998412 373642498015 597827996824 747284996030 1494569992060 2989139984120