Search a number
-
+
2869691331 = 313193381253
BaseRepresentation
bin1010101100001100…
…0000001111000011
321101222211102110010
42223003000033003
521334120110311
61152431240003
7131053655013
oct25303001703
97358742403
102869691331
111242958631
12681079003
133696bb410
141d31a5c43
1511be03da6
hexab0c03c3

2869691331 has 16 divisors (see below), whose sum is σ = 4141943456. Its totient is φ = 1756809216.

The previous prime is 2869691329. The next prime is 2869691339. The reversal of 2869691331 is 1331969682.

It is not a de Polignac number, because 2869691331 - 21 = 2869691329 is a prime.

It is a super-2 number, since 2×28696913312 = 16470256670433103122, which contains 22 as substring.

It is the 53570-th Hogben number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2869691339) by changing a digit.

It is a nontrivial repunit in base 53569.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183100 + ... + 198153.

It is an arithmetic number, because the mean of its divisors is an integer number (258871466).

Almost surely, 22869691331 is an apocalyptic number.

2869691331 is a deficient number, since it is larger than the sum of its proper divisors (1272252125).

2869691331 is a wasteful number, since it uses less digits than its factorization.

2869691331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381462.

The product of its digits is 419904, while the sum is 48.

The square root of 2869691331 is about 53569.5000070003. The cubic root of 2869691331 is about 1421.0577536775.

The spelling of 2869691331 in words is "two billion, eight hundred sixty-nine million, six hundred ninety-one thousand, three hundred thirty-one".

Divisors: 1 3 13 39 193 579 2509 7527 381253 1143759 4956289 14868867 73581829 220745487 956563777 2869691331