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527130987 = 3255168879
BaseRepresentation
bin11111011010110…
…110000101101011
31100201220000202220
4133122312011223
52034421142422
6124150125123
716030353015
oct3732660553
91321800686
10527130987
11250608349
121286507a3
1385294236
14500191b5
1531426e5c
hex1f6b616b

527130987 has 8 divisors (see below), whose sum is σ = 703127040. Its totient is φ = 351277800.

The previous prime is 527130983. The next prime is 527131039. The reversal of 527130987 is 789031725.

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

It is not a de Polignac number, because 527130987 - 22 = 527130983 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 26787 + ... + 42092.

It is an arithmetic number, because the mean of its divisors is an integer number (87890880).

Almost surely, 2527130987 is an apocalyptic number.

527130987 is a deficient number, since it is larger than the sum of its proper divisors (175996053).

527130987 is a wasteful number, since it uses less digits than its factorization.

527130987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71433.

The product of its (nonzero) digits is 105840, while the sum is 42.

The square root of 527130987 is about 22959.3333309136. Note that the first 5 decimals coincide. The cubic root of 527130987 is about 807.8043401638.

The spelling of 527130987 in words is "five hundred twenty-seven million, one hundred thirty thousand, nine hundred eighty-seven".

Divisors: 1 3 2551 7653 68879 206637 175710329 527130987