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127530169 = 1397110103
BaseRepresentation
bin1111001100111…
…11010010111001
322212222012111121
413212133102321
5230121431134
620353225241
73105663034
oct746372271
9285865447
10127530169
1165a95338
1236862221
1320562550
1412d1a01b
15b2e1ab4
hex799f4b9

127530169 has 8 divisors (see below), whose sum is σ = 137495232. Its totient is φ = 117587280.

The previous prime is 127530167. The next prime is 127530173. The reversal of 127530169 is 961035721.

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 127530169 - 21 = 127530167 is a prime.

It is a super-2 number, since 2×1275301692 = 32527888010337122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127530167) 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, 7572 + ... + 17674.

It is an arithmetic number, because the mean of its divisors is an integer number (17186904).

Almost surely, 2127530169 is an apocalyptic number.

It is an amenable number.

127530169 is a deficient number, since it is larger than the sum of its proper divisors (9965063).

127530169 is a wasteful number, since it uses less digits than its factorization.

127530169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11087.

The product of its (nonzero) digits is 11340, while the sum is 34.

The square root of 127530169 is about 11292.9256173943. The cubic root of 127530169 is about 503.3510494278.

The spelling of 127530169 in words is "one hundred twenty-seven million, five hundred thirty thousand, one hundred sixty-nine".

Divisors: 1 13 971 10103 12623 131339 9810013 127530169