Search a number
-
+
8912642 = 221112
BaseRepresentation
bin100001111111…
…111100000010
3121202210211212
4201333330002
54240201032
6515010122
7135520244
oct41777402
917683755
108912642
115038222
122b99942
131b0096b
141280094
15bb0bb2
hex87ff02

8912642 has 6 divisors (see below), whose sum is σ = 13375299. Its totient is φ = 4454210.

The previous prime is 8912627. The next prime is 8912663. The reversal of 8912642 is 2462198.

It can be written as a sum of positive squares in only one way, i.e., 4456321 + 4456321 = 2111^2 + 2111^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=2111.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8912599 and 8912608.

It is an unprimeable number.

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 2 ways as a sum of consecutive naturals, for example, 3167 + ... + 5277.

Almost surely, 28912642 is an apocalyptic number.

8912642 is a deficient number, since it is larger than the sum of its proper divisors (4462657).

8912642 is an frugal number, since it uses more digits than its factorization.

8912642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4224 (or 2113 counting only the distinct ones).

The product of its digits is 6912, while the sum is 32.

The square root of 8912642 is about 2985.4048301696. The cubic root of 8912642 is about 207.3331857151. Note that the first 3 decimals are identical.

Multiplying 8912642 by its sum of digits (32), we get a square (285204544 = 168882).

The spelling of 8912642 in words is "eight million, nine hundred twelve thousand, six hundred forty-two".

Divisors: 1 2 2111 4222 4456321 8912642