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88002197 = 257342421
BaseRepresentation
bin1010011111011…
…00111010010101
320010120222022122
411033230322111
5140012032242
612422105325
72116002113
oct517547225
9203528278
1088002197
1145747398
122557b245
131530280a
14b98aab3
157ad4ad2
hex53ece95

88002197 has 4 divisors (see below), whose sum is σ = 88344876. Its totient is φ = 87659520.

The previous prime is 88002193. The next prime is 88002203. The reversal of 88002197 is 79120088.

It is a happy number.

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 87347716 + 654481 = 9346^2 + 809^2 .

It is a cyclic number.

It is not a de Polignac number, because 88002197 - 22 = 88002193 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 (88002191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170954 + ... + 171467.

It is an arithmetic number, because the mean of its divisors is an integer number (22086219).

Almost surely, 288002197 is an apocalyptic number.

It is an amenable number.

88002197 is a deficient number, since it is larger than the sum of its proper divisors (342679).

88002197 is a wasteful number, since it uses less digits than its factorization.

88002197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342678.

The product of its (nonzero) digits is 8064, while the sum is 35.

The square root of 88002197 is about 9380.9486194094. The cubic root of 88002197 is about 444.7997196620.

The spelling of 88002197 in words is "eighty-eight million, two thousand, one hundred ninety-seven".

Divisors: 1 257 342421 88002197