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16124693 = 131240361
BaseRepresentation
bin111101100000…
…101100010101
31010100012220212
4331200230111
513111442233
61333335205
7254025524
oct75405425
933305825
1016124693
1191137a2
125497505
133457550
1421da4bb
151637a48
hexf60b15

16124693 has 4 divisors (see below), whose sum is σ = 17365068. Its totient is φ = 14884320.

The previous prime is 16124663. The next prime is 16124701. The reversal of 16124693 is 39642161.

16124693 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3179089 + 12945604 = 1783^2 + 3598^2 .

It is a cyclic number.

It is not a de Polignac number, because 16124693 - 26 = 16124629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16124663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 620168 + ... + 620193.

It is an arithmetic number, because the mean of its divisors is an integer number (4341267).

Almost surely, 216124693 is an apocalyptic number.

16124693 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

16124693 is a deficient number, since it is larger than the sum of its proper divisors (1240375).

16124693 is a wasteful number, since it uses less digits than its factorization.

16124693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1240374.

The product of its digits is 7776, while the sum is 32.

The square root of 16124693 is about 4015.5563749000. The cubic root of 16124693 is about 252.6371140410.

The spelling of 16124693 in words is "sixteen million, one hundred twenty-four thousand, six hundred ninety-three".

Divisors: 1 13 1240361 16124693