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3801888 = 253243307
BaseRepresentation
bin1110100000001100100000
321011011012200
432200030200
51433130023
6213253200
744213136
oct16401440
97134180
103801888
112167462
121334200
13a3164c
1470d756
15501743
hex3a0320

3801888 has 72 divisors (see below), whose sum is σ = 11099088. Its totient is φ = 1233792.

The previous prime is 3801883. The next prime is 3801899. The reversal of 3801888 is 8881083.

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

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (3801883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12231 + ... + 12537.

It is an arithmetic number, because the mean of its divisors is an integer number (154154).

Almost surely, 23801888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3801888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5549544).

3801888 is an abundant number, since it is smaller than the sum of its proper divisors (7297200).

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

3801888 is a wasteful number, since it uses less digits than its factorization.

3801888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366 (or 355 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 36.

The square root of 3801888 is about 1949.8430706085. The cubic root of 3801888 is about 156.0749147088.

The spelling of 3801888 in words is "three million, eight hundred one thousand, eight hundred eighty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 43 48 72 86 96 129 144 172 258 288 307 344 387 516 614 688 774 921 1032 1228 1376 1548 1842 2064 2456 2763 3096 3684 4128 4912 5526 6192 7368 9824 11052 12384 13201 14736 22104 26402 29472 39603 44208 52804 79206 88416 105608 118809 158412 211216 237618 316824 422432 475236 633648 950472 1267296 1900944 3801888