Search a number
-
+
16380288 = 273259241
BaseRepresentation
bin111110011111…
…000110000000
31010211012112100
4332133012000
513143132123
61343030400
7256141641
oct76370600
933735470
1016380288
119278831
12559b400
1335169a2
1422656c8
151688643
hexf9f180

16380288 has 96 divisors (see below), whose sum is σ = 48133800. Its totient is φ = 5345280.

The previous prime is 16380283. The next prime is 16380289. The reversal of 16380288 is 88208361.

16380288 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

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

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16380283) 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, 67848 + ... + 68088.

Almost surely, 216380288 is an apocalyptic number.

16380288 is a gapful number since it is divisible by the number (18) 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 16380288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24066900).

16380288 is an abundant number, since it is smaller than the sum of its proper divisors (31753512).

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

16380288 is a wasteful number, since it uses less digits than its factorization.

16380288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320 (or 305 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 16380288 is about 4047.2568487804. The cubic root of 16380288 is about 253.9649857701.

The spelling of 16380288 in words is "sixteen million, three hundred eighty thousand, two hundred eighty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 59 64 72 96 118 128 144 177 192 236 241 288 354 384 472 482 531 576 708 723 944 964 1062 1152 1416 1446 1888 1928 2124 2169 2832 2892 3776 3856 4248 4338 5664 5784 7552 7712 8496 8676 11328 11568 14219 15424 16992 17352 22656 23136 28438 30848 33984 34704 42657 46272 56876 67968 69408 85314 92544 113752 127971 138816 170628 227504 255942 277632 341256 455008 511884 682512 910016 1023768 1365024 1820032 2047536 2730048 4095072 5460096 8190144 16380288