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527130989 = 71111096173
BaseRepresentation
bin11111011010110…
…110000101101101
31100201220000202222
4133122312011231
52034421142424
6124150125125
716030353020
oct3732660555
91321800688
10527130989
11250608350
121286507a5
1385294238
14500191b7
1531426e5e
hex1f6b616d

527130989 has 16 divisors (see below), whose sum is σ = 657901440. Its totient is φ = 410314560.

The previous prime is 527130983. The next prime is 527131039. The reversal of 527130989 is 989031725.

It is a cyclic number.

It is not a de Polignac number, because 527130989 - 220 = 526082413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (527130983) 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, 82307 + ... + 88479.

It is an arithmetic number, because the mean of its divisors is an integer number (41118840).

Almost surely, 2527130989 is an apocalyptic number.

It is an amenable number.

527130989 is a deficient number, since it is larger than the sum of its proper divisors (130770451).

527130989 is a wasteful number, since it uses less digits than its factorization.

527130989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7300.

The product of its (nonzero) digits is 136080, while the sum is 44.

The square root of 527130989 is about 22959.3333744689. Note that the first 4 decimals coincide. The cubic root of 527130989 is about 807.8043411854.

The spelling of 527130989 in words is "five hundred twenty-seven million, one hundred thirty thousand, nine hundred eighty-nine".

Divisors: 1 7 11 77 1109 6173 7763 12199 43211 67903 85393 475321 6845857 47920999 75304427 527130989