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2987242740 = 22355614659
BaseRepresentation
bin1011001000001101…
…1011010011110100
321201012000122200000
42302003123103310
522104213231430
61212230551300
7134012100336
oct26203332364
97635018600
102987242740
1112a3247759
126b4508530
13387b68971
14204a45456
151273c3e60
hexb20db4f4

2987242740 has 72 divisors (see below), whose sum is σ = 9396922080. Its totient is φ = 796596768.

The previous prime is 2987242697. The next prime is 2987242751. The reversal of 2987242740 is 472427892.

2987242740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 302470 + ... + 312189.

Almost surely, 22987242740 is an apocalyptic number.

2987242740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2987242740 is an abundant number, since it is smaller than the sum of its proper divisors (6409679340).

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

2987242740 is a wasteful number, since it uses less digits than its factorization.

2987242740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614683 (or 614669 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 45.

The square root of 2987242740 is about 54655.6743623203. The cubic root of 2987242740 is about 1440.2023153240.

The spelling of 2987242740 in words is "two billion, nine hundred eighty-seven million, two hundred forty-two thousand, seven hundred forty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 81 90 108 135 162 180 243 270 324 405 486 540 810 972 1215 1620 2430 4860 614659 1229318 1843977 2458636 3073295 3687954 5531931 6146590 7375908 9219885 11063862 12293180 16595793 18439770 22127724 27659655 33191586 36879540 49787379 55319310 66383172 82978965 99574758 110638620 149362137 165957930 199149516 248936895 298724274 331915860 497873790 597448548 746810685 995747580 1493621370 2987242740