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16250868 = 22365573
BaseRepresentation
bin111101111111…
…011111110100
31010120122000000
4331333133310
513130011433
61340151300
7255062424
oct75773764
933518000
1016250868
11919a577
125538530
13349caca
142230484
151660113
hexf7f7f4

16250868 has 42 divisors (see below), whose sum is σ = 42646674. Its totient is φ = 5415984.

The previous prime is 16250867. The next prime is 16250879. The reversal of 16250868 is 86805261.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 9809424 + 6441444 = 3132^2 + 2538^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16250867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 130 + ... + 5702.

It is an arithmetic number, because the mean of its divisors is an integer number (1015397).

Almost surely, 216250868 is an apocalyptic number.

16250868 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 16250868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21323337).

16250868 is an abundant number, since it is smaller than the sum of its proper divisors (26395806).

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

16250868 is an equidigital number, since it uses as much as digits as its factorization.

16250868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5595 (or 5578 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 16250868 is about 4031.2365348612. The cubic root of 16250868 is about 253.2943607330.

The spelling of 16250868 in words is "sixteen million, two hundred fifty thousand, eight hundred sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 81 108 162 243 324 486 729 972 1458 2916 5573 11146 16719 22292 33438 50157 66876 100314 150471 200628 300942 451413 601884 902826 1354239 1805652 2708478 4062717 5416956 8125434 16250868