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7142947120 = 245172308951
BaseRepresentation
bin1101010011100000…
…01011100100110000
3200102210201022101001
412221300023210300
5104112043301440
63140442051344
7342003022501
oct65160134460
920383638331
107142947120
113036009991
1214741a9b54
1389ab0583a
144ba92aba8
152bc153b9a
hex1a9c0b930

7142947120 has 60 divisors (see below), whose sum is σ = 17641777104. Its totient is φ = 2689100800.

The previous prime is 7142947099. The next prime is 7142947157. The reversal of 7142947120 is 217492417.

It is a super-3 number, since 3×71429471203 (a number of 31 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7142947120.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 131356 + ... + 177595.

Almost surely, 27142947120 is an apocalyptic number.

It is an amenable number.

7142947120 is an abundant number, since it is smaller than the sum of its proper divisors (10498829984).

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

7142947120 is a wasteful number, since it uses less digits than its factorization.

7142947120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308998 (or 308975 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 7142947120 is about 84515.9577831311. The cubic root of 7142947120 is about 1925.8648720645.

The spelling of 7142947120 in words is "seven billion, one hundred forty-two million, nine hundred forty-seven thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 17 20 34 40 68 80 85 136 170 272 289 340 578 680 1156 1360 1445 2312 2890 4624 5780 11560 23120 308951 617902 1235804 1544755 2471608 3089510 4943216 5252167 6179020 10504334 12358040 21008668 24716080 26260835 42017336 52521670 84034672 89286839 105043340 178573678 210086680 357147356 420173360 446434195 714294712 892868390 1428589424 1785736780 3571473560 7142947120