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2223040420 = 225911122011
BaseRepresentation
bin1000010010000000…
…1110011110100100
312201221001011011101
42010200032132210
514023044243140
61004331245444
7106042350256
oct20440163644
95657034141
102223040420
11a40937197
125205a9884
1329573a943
14171357cd6
15d026d99a
hex8480e7a4

2223040420 has 24 divisors (see below), whose sum is σ = 4673547648. Its totient is φ = 888232800.

The previous prime is 2223040387. The next prime is 2223040423. The reversal of 2223040420 is 240403222.

It is not an unprimeable number, because it can be changed into a prime (2223040423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42786 + ... + 79225.

It is an arithmetic number, because the mean of its divisors is an integer number (194731152).

Almost surely, 22223040420 is an apocalyptic number.

2223040420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2223040420 is an abundant number, since it is smaller than the sum of its proper divisors (2450507228).

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

2223040420 is a wasteful number, since it uses less digits than its factorization.

2223040420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122931 (or 122929 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 2223040420 is about 47149.1295783920. The cubic root of 2223040420 is about 1305.1160175379.

Adding to 2223040420 its reverse (240403222), we get a palindrome (2463443642).

The spelling of 2223040420 in words is "two billion, two hundred twenty-three million, forty thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 911 1822 3644 4555 9110 18220 122011 244022 488044 610055 1220110 2440220 111152021 222304042 444608084 555760105 1111520210 2223040420