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14279980 = 22511134993
BaseRepresentation
bin110110011110…
…010100101100
3222212111110011
4312132110230
512123424410
61230023004
7232243411
oct66362454
928774404
1014279980
118073840
124947a64
132c5c9c0
141c7a108
1513c118a
hexd9e52c

14279980 has 48 divisors (see below), whose sum is σ = 35237664. Its totient is φ = 4792320.

The previous prime is 14279971. The next prime is 14280029. The reversal of 14279980 is 8997241.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

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 15 ways as a sum of consecutive naturals, for example, 364 + ... + 5356.

It is an arithmetic number, because the mean of its divisors is an integer number (734118).

Almost surely, 214279980 is an apocalyptic number.

14279980 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 14279980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17618832).

14279980 is an abundant number, since it is smaller than the sum of its proper divisors (20957684).

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

14279980 is a wasteful number, since it uses less digits than its factorization.

14279980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5026 (or 5024 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 14279980 is about 3778.8860792567. The cubic root of 14279980 is about 242.6102803754.

The spelling of 14279980 in words is "fourteen million, two hundred seventy-nine thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 11 13 20 22 26 44 52 55 65 110 130 143 220 260 286 572 715 1430 2860 4993 9986 19972 24965 49930 54923 64909 99860 109846 129818 219692 259636 274615 324545 549230 649090 713999 1098460 1298180 1427998 2855996 3569995 7139990 14279980