Search a number
-
+
16393871541 = 37027777661
BaseRepresentation
bin11110100010010011…
…01010000010110101
31120022111221221222110
433101021222002311
5232033312342131
611310425321233
71120153415565
oct172111520265
946274857873
1016393871541
116a52a05373
123216336219
131713560208
14b173bcda5
1565e398646
hex3d126a0b5

16393871541 has 8 divisors (see below), whose sum is σ = 21861634144. Its totient is φ = 10927678320.

The previous prime is 16393871539. The next prime is 16393871551. The reversal of 16393871541 is 14517839361.

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

It is not a de Polignac number, because 16393871541 - 21 = 16393871539 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16393871551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 367750 + ... + 409911.

It is an arithmetic number, because the mean of its divisors is an integer number (2732704268).

Almost surely, 216393871541 is an apocalyptic number.

It is an amenable number.

16393871541 is a deficient number, since it is larger than the sum of its proper divisors (5467762603).

16393871541 is an equidigital number, since it uses as much as digits as its factorization.

16393871541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784691.

The product of its digits is 544320, while the sum is 48.

The spelling of 16393871541 in words is "sixteen billion, three hundred ninety-three million, eight hundred seventy-one thousand, five hundred forty-one".

Divisors: 1 3 7027 21081 777661 2332983 5464623847 16393871541