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88821321 = 329607107
BaseRepresentation
bin1010100101101…
…00111001001001
320012010120221120
411102310321021
5140214240241
612451425453
72125653201
oct522647111
9205116846
1088821321
1146156856
12258b5289
131552b5c4
14bb21401
157be7666
hex54b4e49

88821321 has 4 divisors (see below), whose sum is σ = 118428432. Its totient is φ = 59214212.

The previous prime is 88821301. The next prime is 88821323. The reversal of 88821321 is 12312888.

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 88821321 - 217 = 88690249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (88821323) 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, 14803551 + ... + 14803556.

It is an arithmetic number, because the mean of its divisors is an integer number (29607108).

Almost surely, 288821321 is an apocalyptic number.

It is an amenable number.

88821321 is a deficient number, since it is larger than the sum of its proper divisors (29607111).

88821321 is a wasteful number, since it uses less digits than its factorization.

88821321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29607110.

The product of its digits is 6144, while the sum is 33.

The square root of 88821321 is about 9424.5064061732. The cubic root of 88821321 is about 446.1755242958.

The spelling of 88821321 in words is "eighty-eight million, eight hundred twenty-one thousand, three hundred twenty-one".

Divisors: 1 3 29607107 88821321