Search a number
-
+
2225430440 = 23559942979
BaseRepresentation
bin1000010010100101…
…0101111110101000
312202002112120122122
42010221111332220
514024202233230
61004454410412
7106101563252
oct20451257650
95662476578
102225430440
11a42219912
12521360a08
1329609675c
141717bacd2
15d0591be5
hex84a55fa8

2225430440 has 32 divisors (see below), whose sum is σ = 5092092000. Its totient is φ = 875083584.

The previous prime is 2225430439. The next prime is 2225430469. The reversal of 2225430440 is 440345222.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 469130 + ... + 473849.

It is an arithmetic number, because the mean of its divisors is an integer number (159127875).

Almost surely, 22225430440 is an apocalyptic number.

2225430440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2225430440 is an abundant number, since it is smaller than the sum of its proper divisors (2866661560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2225430440 is a wasteful number, since it uses less digits than its factorization.

2225430440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 943049 (or 943045 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 26.

The square root of 2225430440 is about 47174.4680945106. The cubic root of 2225430440 is about 1305.5835658219.

Adding to 2225430440 its reverse (440345222), we get a palindrome (2665775662).

The spelling of 2225430440 in words is "two billion, two hundred twenty-five million, four hundred thirty thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 40 59 118 236 295 472 590 1180 2360 942979 1885958 3771916 4714895 7543832 9429790 18859580 37719160 55635761 111271522 222543044 278178805 445086088 556357610 1112715220 2225430440