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88945 = 517789
BaseRepresentation
bin10101101101110001
311112000021
4111231301
510321240
61523441
7520213
oct255561
9145007
1088945
116090a
1243581
133163c
14245b3
151b54a
hex15b71

88945 has 4 divisors (see below), whose sum is σ = 106740. Its totient is φ = 71152.

The previous prime is 88937. The next prime is 88951. The reversal of 88945 is 54988.

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 65536 + 23409 = 256^2 + 153^2 .

It is a cyclic number.

It is not a de Polignac number, because 88945 - 23 = 88937 is a prime.

It is a super-2 number, since 2×889452 = 15822426050, which contains 22 as substring.

It is a fibodiv number, since the Fibonacci-like sequence with seeds 88 and 945 contains 88945 itself.

88945 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 88945.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8890 + ... + 8899.

It is an arithmetic number, because the mean of its divisors is an integer number (26685).

288945 is an apocalyptic number.

It is an amenable number.

88945 is a deficient number, since it is larger than the sum of its proper divisors (17795).

88945 is a wasteful number, since it uses less digits than its factorization.

88945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17794.

The product of its digits is 11520, while the sum is 34.

The square root of 88945 is about 298.2364833484. The cubic root of 88945 is about 44.6382520202.

The spelling of 88945 in words is "eighty-eight thousand, nine hundred forty-five".

Divisors: 1 5 17789 88945