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6481880352 = 253283271163
BaseRepresentation
bin1100000100101100…
…11010010100100000
3121201201210122020200
412002112122110200
5101233330132402
62551105105200
7316425034233
oct60226322440
917651718220
106481880352
112826941712
12130a928200
137c3b7857c
14456c0941a
1527e0c221c
hex18259a520

6481880352 has 72 divisors (see below), whose sum is σ = 18654998544. Its totient is φ = 2134587264.

The previous prime is 6481880341. The next prime is 6481880359. The reversal of 6481880352 is 2530881846.

It is a tau number, because it is divible by the number of its divisors (72).

It is a junction number, because it is equal to n+sod(n) for n = 6481880298 and 6481880307.

It is not an unprimeable number, because it can be changed into a prime (6481880359) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 111678 + ... + 159485.

It is an arithmetic number, because the mean of its divisors is an integer number (259097202).

Almost surely, 26481880352 is an apocalyptic number.

It is an amenable number.

6481880352 is an abundant number, since it is smaller than the sum of its proper divisors (12173118192).

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

6481880352 is a wasteful number, since it uses less digits than its factorization.

6481880352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271262 (or 271251 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The square root of 6481880352 is about 80510.1257730976. The cubic root of 6481880352 is about 1864.5198160973.

The spelling of 6481880352 in words is "six billion, four hundred eighty-one million, eight hundred eighty thousand, three hundred fifty-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 72 83 96 144 166 249 288 332 498 664 747 996 1328 1494 1992 2656 2988 3984 5976 7968 11952 23904 271163 542326 813489 1084652 1626978 2169304 2440467 3253956 4338608 4880934 6507912 8677216 9761868 13015824 19523736 22506529 26031648 39047472 45013058 67519587 78094944 90026116 135039174 180052232 202558761 270078348 360104464 405117522 540156696 720208928 810235044 1080313392 1620470088 2160626784 3240940176 6481880352