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88128967 = 4115713691
BaseRepresentation
bin1010100000010…
…11110111000111
320010211102012211
411100023313013
5140030111332
612424524251
72120040523
oct520136707
9203742184
1088128967
1145823663
1225620687
1315348424
14b9c0d83
157b0c447
hex540bdc7

88128967 has 8 divisors (see below), whose sum is σ = 90860112. Its totient is φ = 85425600.

The previous prime is 88128961. The next prime is 88128979. The reversal of 88128967 is 76982188.

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 88128967 - 215 = 88096199 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 88128967.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88128961) 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, 409 + ... + 13282.

It is an arithmetic number, because the mean of its divisors is an integer number (11357514).

Almost surely, 288128967 is an apocalyptic number.

88128967 is a deficient number, since it is larger than the sum of its proper divisors (2731145).

88128967 is a wasteful number, since it uses less digits than its factorization.

88128967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13889.

The product of its digits is 387072, while the sum is 49.

The square root of 88128967 is about 9387.7029671800. The cubic root of 88128967 is about 445.0131999619.

The spelling of 88128967 in words is "eighty-eight million, one hundred twenty-eight thousand, nine hundred sixty-seven".

Divisors: 1 41 157 6437 13691 561331 2149487 88128967