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16324365840 = 2435499136309
BaseRepresentation
bin11110011010000001…
…00000111000010000
31120010200011201002020
433031000200320100
5231413014201330
611255503451440
71115350551216
oct171500407020
946120151066
1016324365840
116a17751742
1231b6bb6b80
131702035693
14b0c088cb6
15658219210
hex3cd020e10

16324365840 has 80 divisors (see below), whose sum is σ = 50707320000. Its totient is φ = 4344408576.

The previous prime is 16324365829. The next prime is 16324365847. The reversal of 16324365840 is 4856342361.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 16324365792 and 16324365801.

It is not an unprimeable number, because it can be changed into a prime (16324365847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51606 + ... + 187914.

It is an arithmetic number, because the mean of its divisors is an integer number (633841500).

Almost surely, 216324365840 is an apocalyptic number.

16324365840 is a gapful number since it is divisible by the number (10) 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 16324365840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25353660000).

16324365840 is an abundant number, since it is smaller than the sum of its proper divisors (34382954160).

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

16324365840 is a wasteful number, since it uses less digits than its factorization.

16324365840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136824 (or 136818 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 42.

The spelling of 16324365840 in words is "sixteen billion, three hundred twenty-four million, three hundred sixty-five thousand, eight hundred forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 499 998 1497 1996 2495 2994 3992 4990 5988 7485 7984 9980 11976 14970 19960 23952 29940 39920 59880 119760 136309 272618 408927 545236 681545 817854 1090472 1363090 1635708 2044635 2180944 2726180 3271416 4089270 5452360 6542832 8178540 10904720 16357080 32714160 68018191 136036382 204054573 272072764 340090955 408109146 544145528 680181910 816218292 1020272865 1088291056 1360363820 1632436584 2040545730 2720727640 3264873168 4081091460 5441455280 8162182920 16324365840