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2228479149 = 313547910429
BaseRepresentation
bin1000010011010011…
…1110010010101101
312202022021110200210
42010310332102231
514030442313044
61005044013033
7106136521521
oct20464762255
95668243623
102228479149
11a43a11406
12522391179
132968c3320
14171d71d81
15d09951b9
hex84d3e4ad

2228479149 has 16 divisors (see below), whose sum is σ = 3200758400. Its totient is φ = 1370990016.

The previous prime is 2228479139. The next prime is 2228479151. The reversal of 2228479149 is 9419748222.

It is a happy number.

2228479149 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2228479149 - 211 = 2228477101 is a prime.

It is a super-2 number, since 2×22284791492 = 9932238635055528402, which contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2228479098 and 2228479107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2228479139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 208467 + ... + 218895.

It is an arithmetic number, because the mean of its divisors is an integer number (200047400).

Almost surely, 22228479149 is an apocalyptic number.

It is an amenable number.

2228479149 is a deficient number, since it is larger than the sum of its proper divisors (972279251).

2228479149 is a wasteful number, since it uses less digits than its factorization.

2228479149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15924.

The product of its digits is 580608, while the sum is 48.

The square root of 2228479149 is about 47206.7701606454. The cubic root of 2228479149 is about 1306.1794847155.

The spelling of 2228479149 in words is "two billion, two hundred twenty-eight million, four hundred seventy-nine thousand, one hundred forty-nine".

Divisors: 1 3 13 39 5479 10429 16437 31287 71227 135577 213681 406731 57140491 171421473 742826383 2228479149