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4897447984 = 24111310121193
BaseRepresentation
bin1001000111110100…
…10010000000110000
3110122022102010122101
410203322102000300
540012221313414
62125545150144
7232235423002
oct44372220060
913568363571
104897447984
112093533180
12b4818b354
13600833620
14346608372
151d9e4aa74
hex123e92030

4897447984 has 80 divisors (see below), whose sum is σ = 11258591904. Its totient is φ = 2034432000.

The previous prime is 4897447981. The next prime is 4897448033.

4897447984 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (4897447981) 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, 220492 + ... + 241684.

Almost surely, 24897447984 is an apocalyptic number.

4897447984 is a gapful number since it is divisible by the number (44) 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 4897447984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5629295952).

4897447984 is an abundant number, since it is smaller than the sum of its proper divisors (6361143920).

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

4897447984 is a wasteful number, since it uses less digits than its factorization.

4897447984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21326 (or 21320 counting only the distinct ones).

The product of its digits is 65028096, while the sum is 64.

The square root of 4897447984 is about 69981.7689402033. The cubic root of 4897447984 is about 1698.2043304731.

The spelling of 4897447984 in words is "four billion, eight hundred ninety-seven million, four hundred forty-seven thousand, nine hundred eighty-four".

Divisors: 1 2 4 8 11 13 16 22 26 44 52 88 101 104 143 176 202 208 286 404 572 808 1111 1144 1313 1616 2222 2288 2626 4444 5252 8888 10504 14443 17776 21008 21193 28886 42386 57772 84772 115544 169544 231088 233123 275509 339088 466246 551018 932492 1102036 1864984 2140493 2204072 3030599 3729968 4280986 4408144 6061198 8561972 12122396 17123944 23545423 24244792 27826409 34247888 47090846 48489584 55652818 94181692 111305636 188363384 222611272 306090499 376726768 445222544 612180998 1224361996 2448723992 4897447984