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2398081 = 73747197
BaseRepresentation
bin1001001001011110000001
311111211112211
421021132001
51103214311
6123222121
726245330
oct11113601
94454484
102398081
111398794
12977941
1365c6aa
14465d17
15325821
hex249781

2398081 has 16 divisors (see below), whose sum is σ = 2889216. Its totient is φ = 1947456.

The previous prime is 2398073. The next prime is 2398087. The reversal of 2398081 is 1808932.

It is not a de Polignac number, because 2398081 - 23 = 2398073 is a prime.

It is a super-2 number, since 2×23980812 = 11501584965122, which contains 22 as substring.

It is a Duffinian number.

2398081 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2398087) 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, 12075 + ... + 12271.

It is an arithmetic number, because the mean of its divisors is an integer number (180576).

22398081 is an apocalyptic number.

It is an amenable number.

2398081 is a deficient number, since it is larger than the sum of its proper divisors (491135).

2398081 is a wasteful number, since it uses less digits than its factorization.

2398081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 2398081 is about 1548.5738600403. The cubic root of 2398081 is about 133.8508960060.

The spelling of 2398081 in words is "two million, three hundred ninety-eight thousand, eighty-one".

Divisors: 1 7 37 47 197 259 329 1379 1739 7289 9259 12173 51023 64813 342583 2398081