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197039513 = 1140194457
BaseRepresentation
bin10111011111010…
…01010110011001
3111201202122101202
423233221112121
5400420231023
631315123545
74611544136
oct1357512631
9451678352
10197039513
11a1250780
1255ba35b5
1331a8b938
141c25158d
1512472128
hexbbe9599

197039513 has 8 divisors (see below), whose sum is σ = 215053920. Its totient is φ = 179042080.

The previous prime is 197039501. The next prime is 197039573. The reversal of 197039513 is 315930791.

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

It is a cyclic number.

It is not a de Polignac number, because 197039513 - 24 = 197039497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (197039573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41981 + ... + 46437.

It is an arithmetic number, because the mean of its divisors is an integer number (26881740).

Almost surely, 2197039513 is an apocalyptic number.

It is an amenable number.

197039513 is a deficient number, since it is larger than the sum of its proper divisors (18014407).

197039513 is a wasteful number, since it uses less digits than its factorization.

197039513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8487.

The product of its (nonzero) digits is 25515, while the sum is 38.

The square root of 197039513 is about 14037.0763693869. The cubic root of 197039513 is about 581.9036863882.

The spelling of 197039513 in words is "one hundred ninety-seven million, thirty-nine thousand, five hundred thirteen".

Divisors: 1 11 4019 4457 44209 49027 17912683 197039513