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2234215220 = 225711573391
BaseRepresentation
bin1000010100101011…
…0110101100110100
312202201001220002212
42011022312230310
514033424341340
61005410552552
7106236341666
oct20512665464
95681056085
102234215220
11a47179a66
12524298758
13297b51153
14172a26536
15d1229a65
hex852b6b34

2234215220 has 24 divisors (see below), whose sum is σ = 4757937408. Its totient is φ = 881098400.

The previous prime is 2234215213. The next prime is 2234215223. The reversal of 2234215220 is 225124322.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2234215223) 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, 785276 + ... + 788115.

It is an arithmetic number, because the mean of its divisors is an integer number (198247392).

Almost surely, 22234215220 is an apocalyptic number.

2234215220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2234215220 is an abundant number, since it is smaller than the sum of its proper divisors (2523722188).

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

2234215220 is a wasteful number, since it uses less digits than its factorization.

2234215220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1573471 (or 1573469 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 2234215220 is about 47267.4858650214. The cubic root of 2234215220 is about 1307.2992198281.

Adding to 2234215220 its reverse (225124322), we get a palindrome (2459339542).

The spelling of 2234215220 in words is "two billion, two hundred thirty-four million, two hundred fifteen thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 71 142 284 355 710 1420 1573391 3146782 6293564 7866955 15733910 31467820 111710761 223421522 446843044 558553805 1117107610 2234215220