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16165007 = 131123397
BaseRepresentation
bin111101101010…
…100010001111
31010102021012222
4331222202033
513114240012
61334245555
7254254205
oct75524217
933367188
1016165007
119141011
1254b68bb
13346c9c1
14220b075
151644972
hexf6a88f

16165007 has 4 divisors (see below), whose sum is σ = 16288536. Its totient is φ = 16041480.

The previous prime is 16165001. The next prime is 16165031. The reversal of 16165007 is 70056161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70056161 = 710008023.

It is a cyclic number.

It is not a de Polignac number, because 16165007 - 28 = 16164751 is a prime.

It is a super-2 number, since 2×161650072 = 522614902620098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16165001) 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, 61568 + ... + 61829.

It is an arithmetic number, because the mean of its divisors is an integer number (4072134).

Almost surely, 216165007 is an apocalyptic number.

16165007 is a deficient number, since it is larger than the sum of its proper divisors (123529).

16165007 is a wasteful number, since it uses less digits than its factorization.

16165007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123528.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 16165007 is about 4020.5729691177. The cubic root of 16165007 is about 252.8474815927.

The spelling of 16165007 in words is "sixteen million, one hundred sixty-five thousand, seven".

Divisors: 1 131 123397 16165007