Search a number
-
+
16291518145 = 574310824929
BaseRepresentation
bin11110010110000110…
…01101011011000001
31120001101100212111221
433023003031123001
5231331112040040
611252331435041
71114501422310
oct171303153301
946041325457
1016291518145
116a00156791
1231a7bb5a81
1316c82a4486
14b07978277
156553cb74a
hex3cb0cd6c1

16291518145 has 16 divisors (see below), whose sum is σ = 22862252160. Its totient is φ = 10911527424.

The previous prime is 16291518119. The next prime is 16291518157. The reversal of 16291518145 is 54181519261.

16291518145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2k-16291518145 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5410960 + ... + 5413969.

It is an arithmetic number, because the mean of its divisors is an integer number (1428890760).

Almost surely, 216291518145 is an apocalyptic number.

It is an amenable number.

16291518145 is a deficient number, since it is larger than the sum of its proper divisors (6570734015).

16291518145 is a wasteful number, since it uses less digits than its factorization.

16291518145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10824984.

The product of its digits is 86400, while the sum is 43.

The spelling of 16291518145 in words is "sixteen billion, two hundred ninety-one million, five hundred eighteen thousand, one hundred forty-five".

Divisors: 1 5 7 35 43 215 301 1505 10824929 54124645 75774503 378872515 465471947 2327359735 3258303629 16291518145