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16123340 = 225978311
BaseRepresentation
bin111101100000…
…010111001100
31010100011001202
4331200113030
513111421330
61333325032
7254021552
oct75402714
933304052
1016123340
119112782
125496778
133456a4c
1421d9bd2
151637445
hexf605cc

16123340 has 24 divisors (see below), whose sum is σ = 34212192. Its totient is φ = 6382080.

The previous prime is 16123321. The next prime is 16123351. The reversal of 16123340 is 4332161.

16123340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2216 + ... + 6095.

It is an arithmetic number, because the mean of its divisors is an integer number (1425508).

Almost surely, 216123340 is an apocalyptic number.

16123340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16123340 is an abundant number, since it is smaller than the sum of its proper divisors (18088852).

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

16123340 is a wasteful number, since it uses less digits than its factorization.

16123340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8417 (or 8415 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 16123340 is about 4015.3879015607. The cubic root of 16123340 is about 252.6300477033.

The spelling of 16123340 in words is "sixteen million, one hundred twenty-three thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 97 194 388 485 970 1940 8311 16622 33244 41555 83110 166220 806167 1612334 3224668 4030835 8061670 16123340