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88826993 = 531675981
BaseRepresentation
bin1010100101101…
…10010001110001
320012010212201122
411102312101301
5140214430433
612451512025
72126005553
oct522662161
9205125648
1088826993
1146160042
12258b8615
1315531068
14bb234d3
157be9198
hex54b6471

88826993 has 4 divisors (see below), whose sum is σ = 90503028. Its totient is φ = 87150960.

The previous prime is 88826963. The next prime is 88826999. The reversal of 88826993 is 39962888.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 77651344 + 11175649 = 8812^2 + 3343^2 .

It is a cyclic number.

It is not a de Polignac number, because 88826993 - 26 = 88826929 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53), and also a Moran number because the ratio is a prime number: 1675981 = 88826993 / (8 + 8 + 8 + 2 + 6 + 9 + 9 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88826999) 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 3 ways as a sum of consecutive naturals, for example, 837938 + ... + 838043.

It is an arithmetic number, because the mean of its divisors is an integer number (22625757).

Almost surely, 288826993 is an apocalyptic number.

It is an amenable number.

88826993 is a deficient number, since it is larger than the sum of its proper divisors (1676035).

88826993 is a wasteful number, since it uses less digits than its factorization.

88826993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1676034.

The product of its digits is 1492992, while the sum is 53.

The square root of 88826993 is about 9424.8073189854. The cubic root of 88826993 is about 446.1850214663.

The spelling of 88826993 in words is "eighty-eight million, eight hundred twenty-six thousand, nine hundred ninety-three".

Divisors: 1 53 1675981 88826993