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16216097 = 131123787
BaseRepresentation
bin111101110111…
…000000100001
31010111212022012
4331313000201
513122403342
61335322305
7254556152
oct75670041
933455265
1016216097
119176437
125520395
13348a031
142221929
151654b82
hexf77021

16216097 has 4 divisors (see below), whose sum is σ = 16340016. Its totient is φ = 16092180.

The previous prime is 16216073. The next prime is 16216099. The reversal of 16216097 is 79061261.

It is a happy number.

16216097 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, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 79061261 = 194161119.

It is a cyclic number.

It is not a de Polignac number, because 16216097 - 214 = 16199713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16216099) 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, 61763 + ... + 62024.

It is an arithmetic number, because the mean of its divisors is an integer number (4085004).

Almost surely, 216216097 is an apocalyptic number.

It is an amenable number.

16216097 is a deficient number, since it is larger than the sum of its proper divisors (123919).

16216097 is a wasteful number, since it uses less digits than its factorization.

16216097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123918.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 16216097 is about 4026.9215289101. The cubic root of 16216097 is about 253.1135788577.

The spelling of 16216097 in words is "sixteen million, two hundred sixteen thousand, ninety-seven".

Divisors: 1 131 123787 16216097