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2213020331 = 73107311911
BaseRepresentation
bin1000001111101000…
…0000001010101011
312201020012002011222
42003322000022223
514013013122311
61003332412255
7105561235214
oct20372001253
95636162158
102213020331
11a36212a25
1251917708b
1329363cbb2
1416dcaa40b
15ce43eadb
hex83e802ab

2213020331 has 16 divisors (see below), whose sum is σ = 2274075648. Its totient is φ = 2152987200.

The previous prime is 2213020301. The next prime is 2213020349. The reversal of 2213020331 is 1330203122.

It is a cyclic number.

It is not a de Polignac number, because 2213020331 - 26 = 2213020267 is a prime.

It is a super-2 number, since 2×22130203312 = 9794917970838699122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2213020301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2428766 + ... + 2429676.

It is an arithmetic number, because the mean of its divisors is an integer number (142129728).

Almost surely, 22213020331 is an apocalyptic number.

2213020331 is a deficient number, since it is larger than the sum of its proper divisors (61055317).

2213020331 is a wasteful number, since it uses less digits than its factorization.

2213020331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1402.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 2213020331 is about 47042.7500365359. The cubic root of 2213020331 is about 1303.1521791654.

Adding to 2213020331 its reverse (1330203122), we get a palindrome (3543223453).

The spelling of 2213020331 in words is "two billion, two hundred thirteen million, twenty thousand, three hundred thirty-one".

Divisors: 1 73 107 311 911 7811 22703 33277 66503 97477 283321 2429221 7115821 20682433 30315347 2213020331