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2238502220 = 225373025003
BaseRepresentation
bin1000010101101100…
…1101010101001100
312210000010200202122
42011123031111030
514041024032340
61010042512112
7106320645353
oct20533152514
95700120678
102238502220
11a49637939
12525805638
132989c2536
1417342099a
15d17c4db5
hex856cd54c

2238502220 has 24 divisors (see below), whose sum is σ = 4827906384. Its totient is φ = 871200576.

The previous prime is 2238502207. The next prime is 2238502247. The reversal of 2238502220 is 222058322.

It is a self number, because there is not a number n which added to its sum of digits gives 2238502220.

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, 1511762 + ... + 1513241.

It is an arithmetic number, because the mean of its divisors is an integer number (201162766).

Almost surely, 22238502220 is an apocalyptic number.

2238502220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2238502220 is an abundant number, since it is smaller than the sum of its proper divisors (2589404164).

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

2238502220 is a wasteful number, since it uses less digits than its factorization.

2238502220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3025049 (or 3025047 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 2238502220 is about 47312.8124296157. The cubic root of 2238502220 is about 1308.1348318083.

The spelling of 2238502220 in words is "two billion, two hundred thirty-eight million, five hundred two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 37 74 148 185 370 740 3025003 6050006 12100012 15125015 30250030 60500060 111925111 223850222 447700444 559625555 1119251110 2238502220