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16124740 = 2256113217
BaseRepresentation
bin111101100000…
…101101000100
31010100012222121
4331200231010
513111442430
61333335324
7254025622
oct75405504
933305877
1016124740
119113835
125497544
133457588
1421da512
151637a7a
hexf60b44

16124740 has 24 divisors (see below), whose sum is σ = 34419672. Its totient is φ = 6343680.

The previous prime is 16124729. The next prime is 16124777. The reversal of 16124740 is 4742161.

It can be written as a sum of positive squares in 4 ways, for example, as 12544 + 16112196 = 112^2 + 4014^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5389 + ... + 7828.

It is an arithmetic number, because the mean of its divisors is an integer number (1434153).

Almost surely, 216124740 is an apocalyptic number.

16124740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16124740 is an abundant number, since it is smaller than the sum of its proper divisors (18294932).

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

16124740 is a wasteful number, since it uses less digits than its factorization.

16124740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13287 (or 13285 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 16124740 is about 4015.5622271358. The cubic root of 16124740 is about 252.6373595016.

The spelling of 16124740 in words is "sixteen million, one hundred twenty-four thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 61 122 244 305 610 1220 13217 26434 52868 66085 132170 264340 806237 1612474 3224948 4031185 8062370 16124740