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4947906768 = 243767321881
BaseRepresentation
bin1001001101110101…
…10001000011010000
3110202211100201002020
410212322301003100
540113131004033
62134550451440
7233420341110
oct44672610320
913684321066
104947906768
112109a67652
12b61063b80
1360b11c7ac
1434d1c1040
151de5b66b3
hex126eb10d0

4947906768 has 80 divisors (see below), whose sum is σ = 14630480256. Its totient is φ = 1411522560.

The previous prime is 4947906767. The next prime is 4947906791. The reversal of 4947906768 is 8676097494.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4947906767) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 215188 + ... + 237068.

Almost surely, 24947906768 is an apocalyptic number.

4947906768 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4947906768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7315240128).

4947906768 is an abundant number, since it is smaller than the sum of its proper divisors (9682573488).

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

4947906768 is a wasteful number, since it uses less digits than its factorization.

4947906768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22572 (or 22566 counting only the distinct ones).

The product of its (nonzero) digits is 18289152, while the sum is 60.

The square root of 4947906768 is about 70341.3588722879. The cubic root of 4947906768 is about 1704.0166576872.

The spelling of 4947906768 in words is "four billion, nine hundred forty-seven million, nine hundred six thousand, seven hundred sixty-eight".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 42 48 56 84 112 168 336 673 1346 2019 2692 4038 4711 5384 8076 9422 10768 14133 16152 18844 21881 28266 32304 37688 43762 56532 65643 75376 87524 113064 131286 153167 175048 226128 262572 306334 350096 459501 525144 612668 919002 1050288 1225336 1838004 2450672 3676008 7352016 14725913 29451826 44177739 58903652 88355478 103081391 117807304 176710956 206162782 235614608 309244173 353421912 412325564 618488346 706843824 824651128 1236976692 1649302256 2473953384 4947906768