Search a number
-
+
88230445 = 564127529
BaseRepresentation
bin1010100001001…
…00101000101101
320011000120102021
411100210220231
5140041333240
612431030141
72120642422
oct520445055
9204016367
1088230445
1145892926
122566b351
1315382684
14ba09d49
157b2c54a
hex5424a2d

88230445 has 8 divisors (see below), whose sum is σ = 106045560. Its totient is φ = 70471680.

The previous prime is 88230437. The next prime is 88230449. The reversal of 88230445 is 54403288.

It can be written as a sum of positive squares in 4 ways, for example, as 18774889 + 69455556 = 4333^2 + 8334^2 .

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

It is not a de Polignac number, because 88230445 - 23 = 88230437 is a prime.

It is a super-2 number, since 2×882304452 = 15569222849796050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 88230445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88230449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10560 + ... + 16969.

It is an arithmetic number, because the mean of its divisors is an integer number (13255695).

Almost surely, 288230445 is an apocalyptic number.

It is an amenable number.

88230445 is a deficient number, since it is larger than the sum of its proper divisors (17815115).

88230445 is a wasteful number, since it uses less digits than its factorization.

88230445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28175.

The product of its (nonzero) digits is 30720, while the sum is 34.

The square root of 88230445 is about 9393.1062487337. The cubic root of 88230445 is about 445.1839411269.

The spelling of 88230445 in words is "eighty-eight million, two hundred thirty thousand, four hundred forty-five".

Divisors: 1 5 641 3205 27529 137645 17646089 88230445