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3887448864 = 253132239611
BaseRepresentation
bin1110011110110101…
…1100001100100000
3101000220220212022120
43213231130030200
530430141330424
61441425304240
7165222525105
oct34755341440
911026825276
103887448864
1117153aa962
12905a95080
1349c505100
1428c416aac
1517b441a79
hexe7b5c320

3887448864 has 72 divisors (see below), whose sum is σ = 11049946992. Its totient is φ = 1196133120.

The previous prime is 3887448863. The next prime is 3887448883. The reversal of 3887448864 is 4688447883.

3887448864 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×38874488642 = 30224517340429780992, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3887448798 and 3887448807.

It is not an unprimeable number, because it can be changed into a prime (3887448863) 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, 103582 + ... + 136029.

It is an arithmetic number, because the mean of its divisors is an integer number (153471486).

Almost surely, 23887448864 is an apocalyptic number.

It is an amenable number.

3887448864 is an abundant number, since it is smaller than the sum of its proper divisors (7162498128).

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

3887448864 is a wasteful number, since it uses less digits than its factorization.

3887448864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239650 (or 239629 counting only the distinct ones).

The product of its digits is 33030144, while the sum is 60.

The square root of 3887448864 is about 62349.4094919912. The cubic root of 3887448864 is about 1572.3705333781.

The spelling of 3887448864 in words is "three billion, eight hundred eighty-seven million, four hundred forty-eight thousand, eight hundred sixty-four".

Divisors: 1 2 3 4 6 8 12 13 16 24 26 32 39 48 52 78 96 104 156 169 208 312 338 416 507 624 676 1014 1248 1352 2028 2704 4056 5408 8112 16224 239611 479222 718833 958444 1437666 1916888 2875332 3114943 3833776 5750664 6229886 7667552 9344829 11501328 12459772 18689658 23002656 24919544 37379316 40494259 49839088 74758632 80988518 99678176 121482777 149517264 161977036 242965554 299034528 323954072 485931108 647908144 971862216 1295816288 1943724432 3887448864