Search a number
-
+
8222025 = 352715661
BaseRepresentation
bin11111010111010101001001
3120110201111110
4133113111021
54101101100
6452120533
7126612630
oct37272511
916421443
108222025
114706369
122906149
13191b506
141140517
15ac6250
hex7d7549

8222025 has 24 divisors (see below), whose sum is σ = 15536704. Its totient is φ = 3758400.

The previous prime is 8222009. The next prime is 8222047. The reversal of 8222025 is 5202228.

It is not a de Polignac number, because 8222025 - 24 = 8222009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

8222025 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 8221992 and 8222010.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7306 + ... + 8355.

Almost surely, 28222025 is an apocalyptic number.

It is an amenable number.

8222025 is a deficient number, since it is larger than the sum of its proper divisors (7314679).

8222025 is a wasteful number, since it uses less digits than its factorization.

8222025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15681 (or 15676 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 8222025 is about 2867.4073655482. The cubic root of 8222025 is about 201.8333511002.

The spelling of 8222025 in words is "eight million, two hundred twenty-two thousand, twenty-five".

Divisors: 1 3 5 7 15 21 25 35 75 105 175 525 15661 46983 78305 109627 234915 328881 391525 548135 1174575 1644405 2740675 8222025