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2479139 = 131910037
BaseRepresentation
bin1001011101010000100011
311122221201222
421131100203
51113313024
6125045255
730033545
oct11352043
94587658
102479139
111443683
129b682b
1368a560
14487695
1533e85e
hex25d423

2479139 has 8 divisors (see below), whose sum is σ = 2810640. Its totient is φ = 2167776.

The previous prime is 2479129. The next prime is 2479151. The reversal of 2479139 is 9319742.

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

It is not a de Polignac number, because 2479139 - 216 = 2413603 is a prime.

It is a super-3 number, since 3×24791393 = 45711333094769887857, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2479099 and 2479108.

It is not an unprimeable number, because it can be changed into a prime (2479129) 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, 4772 + ... + 5265.

It is an arithmetic number, because the mean of its divisors is an integer number (351330).

22479139 is an apocalyptic number.

2479139 is a deficient number, since it is larger than the sum of its proper divisors (331501).

2479139 is a wasteful number, since it uses less digits than its factorization.

2479139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10069.

The product of its digits is 13608, while the sum is 35.

The square root of 2479139 is about 1574.5281832981. The cubic root of 2479139 is about 135.3423228166.

The spelling of 2479139 in words is "two million, four hundred seventy-nine thousand, one hundred thirty-nine".

Divisors: 1 13 19 247 10037 130481 190703 2479139