Search a number
-
+
16912907 = 111980923
BaseRepresentation
bin100000010000…
…1001000001011
31011211021010222
41000201020023
513312203112
61402300255
7263520524
oct100411013
934737128
1016912907
119601a10
1257b768b
13367224b
14236384b
151741372
hex102120b

16912907 has 8 divisors (see below), whose sum is σ = 19421760. Its totient is φ = 14565960.

The previous prime is 16912853. The next prime is 16912919. The reversal of 16912907 is 70921961.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16912907 - 212 = 16908811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16912967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40253 + ... + 40670.

It is an arithmetic number, because the mean of its divisors is an integer number (2427720).

Almost surely, 216912907 is an apocalyptic number.

16912907 is a deficient number, since it is larger than the sum of its proper divisors (2508853).

16912907 is a wasteful number, since it uses less digits than its factorization.

16912907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80953.

The product of its (nonzero) digits is 6804, while the sum is 35.

The square root of 16912907 is about 4112.5304862092. The cubic root of 16912907 is about 256.6883078021.

The spelling of 16912907 in words is "sixteen million, nine hundred twelve thousand, nine hundred seven".

Divisors: 1 11 19 209 80923 890153 1537537 16912907