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2283145221 = 37108721201
BaseRepresentation
bin1000100000010110…
…0000100000000101
312220010010210110010
42020011200200011
514133441121341
61014315420433
7110402262030
oct21005404005
95803123403
102283145221
11a71859885
12538754719
132a5023506
14179322017
15d5692716
hex88160805

2283145221 has 8 divisors (see below), whose sum is σ = 3479078464. Its totient is φ = 1304654400.

The previous prime is 2283145219. The next prime is 2283145223. The reversal of 2283145221 is 1225413822.

It is an interprime number because it is at equal distance from previous prime (2283145219) and next prime (2283145223).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2283145221 - 21 = 2283145219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2283145223) 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, 54360580 + ... + 54360621.

It is an arithmetic number, because the mean of its divisors is an integer number (434884808).

Almost surely, 22283145221 is an apocalyptic number.

2283145221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2283145221 is a deficient number, since it is larger than the sum of its proper divisors (1195933243).

2283145221 is a wasteful number, since it uses less digits than its factorization.

2283145221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108721211.

The product of its digits is 7680, while the sum is 30.

The square root of 2283145221 is about 47782.2688975733. The cubic root of 2283145221 is about 1316.7738057844.

The spelling of 2283145221 in words is "two billion, two hundred eighty-three million, one hundred forty-five thousand, two hundred twenty-one".

Divisors: 1 3 7 21 108721201 326163603 761048407 2283145221