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16698141 = 321855349
BaseRepresentation
bin111111101100…
…101100011101
31011102100112200
4333230230131
513233320031
61353522113
7261634425
oct77545435
934370480
1016698141
119475619
125713339
1335c8575
142309485
1516ec8e6
hexfecb1d

16698141 has 6 divisors (see below), whose sum is σ = 24119550. Its totient is φ = 11132088.

The previous prime is 16698139. The next prime is 16698173. The reversal of 16698141 is 14189661.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 9326916 + 7371225 = 3054^2 + 2715^2 .

It is not a de Polignac number, because 16698141 - 21 = 16698139 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 16698096 and 16698105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16698191) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 927666 + ... + 927683.

It is an arithmetic number, because the mean of its divisors is an integer number (4019925).

Almost surely, 216698141 is an apocalyptic number.

It is an amenable number.

16698141 is a deficient number, since it is larger than the sum of its proper divisors (7421409).

16698141 is a wasteful number, since it uses less digits than its factorization.

16698141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1855355 (or 1855352 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 16698141 is about 4086.3358892778. The cubic root of 16698141 is about 255.5971702097.

The spelling of 16698141 in words is "sixteen million, six hundred ninety-eight thousand, one hundred forty-one".

Divisors: 1 3 9 1855349 5566047 16698141