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16308071 = 131254467
BaseRepresentation
bin111110001101…
…011101100111
31010200112110122
4332031131213
513133324241
61341312155
7255421253
oct76153547
933615418
1016308071
11922954a
12556565b
1334bcb60
142247263
15167204b
hexf8d767

16308071 has 4 divisors (see below), whose sum is σ = 17562552. Its totient is φ = 15053592.

The previous prime is 16308067. The next prime is 16308073. The reversal of 16308071 is 17080361.

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

It is a cyclic number.

It is not a de Polignac number, because 16308071 - 22 = 16308067 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16308071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16308073) 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, 627221 + ... + 627246.

It is an arithmetic number, because the mean of its divisors is an integer number (4390638).

Almost surely, 216308071 is an apocalyptic number.

16308071 is a deficient number, since it is larger than the sum of its proper divisors (1254481).

16308071 is a wasteful number, since it uses less digits than its factorization.

16308071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1254480.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 16308071 is about 4038.3252716937. The cubic root of 16308071 is about 253.5912111298.

The spelling of 16308071 in words is "sixteen million, three hundred eight thousand, seventy-one".

Divisors: 1 13 1254467 16308071