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88216061 = 791116659
BaseRepresentation
bin1010100001000…
…01000111111101
320010222211200112
411100201013331
5140040403221
612430435405
72120552453
oct520410775
9203884615
1088216061
114588303a
1225662b65
1315378c6b
14ba049d3
157b2815b
hex54211fd

88216061 has 4 divisors (see below), whose sum is σ = 89332800. Its totient is φ = 87099324.

The previous prime is 88216027. The next prime is 88216087. The reversal of 88216061 is 16061288.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 88216061 - 210 = 88215037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88216561) 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, 558251 + ... + 558408.

It is an arithmetic number, because the mean of its divisors is an integer number (22333200).

Almost surely, 288216061 is an apocalyptic number.

It is an amenable number.

88216061 is a deficient number, since it is larger than the sum of its proper divisors (1116739).

88216061 is a wasteful number, since it uses less digits than its factorization.

88216061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1116738.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 88216061 is about 9392.3405496181. The cubic root of 88216061 is about 445.1597473850.

The spelling of 88216061 in words is "eighty-eight million, two hundred sixteen thousand, sixty-one".

Divisors: 1 79 1116659 88216061