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2664047120 = 24575389759
BaseRepresentation
bin1001111011001010…
…0010001000010000
320212122212121121212
42132302202020100
520423444001440
61120203435252
7123006012140
oct23662421020
96778777555
102664047120
111147870039
12624225b28
13335c09057
141b3b54920
15108d32465
hex9eca2210

2664047120 has 80 divisors (see below), whose sum is σ = 7212395520. Its totient is φ = 896143872.

The previous prime is 2664047117. The next prime is 2664047131. The reversal of 2664047120 is 217404662.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15200 + ... + 74559.

It is an arithmetic number, because the mean of its divisors is an integer number (90154944).

Almost surely, 22664047120 is an apocalyptic number.

2664047120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2664047120 is an abundant number, since it is smaller than the sum of its proper divisors (4548348400).

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

2664047120 is a wasteful number, since it uses less digits than its factorization.

2664047120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89832 (or 89826 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 2664047120 is about 51614.4080659655. The cubic root of 2664047120 is about 1386.2683268831.

The spelling of 2664047120 in words is "two billion, six hundred sixty-four million, forty-seven thousand, one hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 35 40 53 56 70 80 106 112 140 212 265 280 371 424 530 560 742 848 1060 1484 1855 2120 2968 3710 4240 5936 7420 14840 29680 89759 179518 359036 448795 628313 718072 897590 1256626 1436144 1795180 2513252 3141565 3590360 4757227 5026504 6283130 7180720 9514454 10053008 12566260 19028908 23786135 25132520 33300589 38057816 47572270 50265040 66601178 76115632 95144540 133202356 166502945 190289080 266404712 333005890 380578160 532809424 666011780 1332023560 2664047120