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126130517 = 1014432819
BaseRepresentation
bin1111000010010…
…01100101010101
322210100002112122
413201021211111
5224242134032
620303225325
73061043312
oct741114525
9283302478
10126130517
11652197a7
12362a8245
1320192456
1412a73d09
15b117012
hex7849955

126130517 has 8 divisors (see below), whose sum is σ = 127712160. Its totient is φ = 124555600.

The previous prime is 126130489. The next prime is 126130519. The reversal of 126130517 is 715031621.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-126130517 is a prime.

It is a super-3 number, since 3×1261305173 (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126130519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43334 + ... + 46152.

It is an arithmetic number, because the mean of its divisors is an integer number (15964020).

Almost surely, 2126130517 is an apocalyptic number.

It is an amenable number.

126130517 is a deficient number, since it is larger than the sum of its proper divisors (1581643).

126130517 is a wasteful number, since it uses less digits than its factorization.

126130517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3363.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 126130517 is about 11230.7843448265. The cubic root of 126130517 is about 501.5028344517.

The spelling of 126130517 in words is "one hundred twenty-six million, one hundred thirty thousand, five hundred seventeen".

Divisors: 1 101 443 2819 44743 284719 1248817 126130517