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16307680 = 255227449
BaseRepresentation
bin111110001101…
…010111100000
31010200111221011
4332031113200
513133321210
61341310304
7255420154
oct76152740
933614834
1016307680
119229224
125565394
1334bc91c
142247064
151671d8a
hexf8d5e0

16307680 has 48 divisors (see below), whose sum is σ = 38782800. Its totient is φ = 6479872.

The previous prime is 16307677. The next prime is 16307693. The reversal of 16307680 is 8670361.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36096 + ... + 36544.

It is an arithmetic number, because the mean of its divisors is an integer number (807975).

Almost surely, 216307680 is an apocalyptic number.

16307680 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 16307680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19391400).

16307680 is an abundant number, since it is smaller than the sum of its proper divisors (22475120).

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

16307680 is a wasteful number, since it uses less digits than its factorization.

16307680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691 (or 683 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 16307680 is about 4038.2768602462. The cubic root of 16307680 is about 253.5891844246.

The spelling of 16307680 in words is "sixteen million, three hundred seven thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 227 449 454 898 908 1135 1796 1816 2245 2270 3592 3632 4490 4540 7184 7264 8980 9080 14368 17960 18160 35920 36320 71840 101923 203846 407692 509615 815384 1019230 1630768 2038460 3261536 4076920 8153840 16307680