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5209271481 = 383138115149
BaseRepresentation
bin1001101100111111…
…10010110010111001
3111110001011102001210
410312133302302321
541132033141411
62220524433333
7243043035261
oct46637626271
914401142053
105209271481
112233552847
1210146a8849
13650310c7b
14375bb87a1
152074e2ca6
hex1367f2cb9

5209271481 has 16 divisors (see below), whose sum is σ = 7034932800. Its totient is φ = 3428295360.

The previous prime is 5209271471. The next prime is 5209271503. The reversal of 5209271481 is 1841729025.

It is not a de Polignac number, because 5209271481 - 223 = 5200882873 is a prime.

It is a super-3 number, since 3×52092714813 (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (5209271471) 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, 336295 + ... + 351443.

It is an arithmetic number, because the mean of its divisors is an integer number (439683300).

Almost surely, 25209271481 is an apocalyptic number.

It is an amenable number.

5209271481 is a deficient number, since it is larger than the sum of its proper divisors (1825661319).

5209271481 is a wasteful number, since it uses less digits than its factorization.

5209271481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16616.

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 5209271481 is about 72175.2830337367. The cubic root of 5209271481 is about 1733.5072556702.

The spelling of 5209271481 in words is "five billion, two hundred nine million, two hundred seventy-one thousand, four hundred eighty-one".

Divisors: 1 3 83 249 1381 4143 15149 45447 114623 343869 1257367 3772101 20920769 62762307 1736423827 5209271481