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88690199 = 136822323
BaseRepresentation
bin1010100100101…
…00111000010111
320011212221002012
411102110320113
5140201041244
612444534435
72124566003
oct522247027
9204787065
1088690199
1146077294
122585141b
13154b3a10
14bac9703
157bbd89e
hex5494e17

88690199 has 4 divisors (see below), whose sum is σ = 95512536. Its totient is φ = 81867864.

The previous prime is 88690183. The next prime is 88690211. The reversal of 88690199 is 99109688.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 88690199 - 24 = 88690183 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 (88690159) 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, 3411149 + ... + 3411174.

It is an arithmetic number, because the mean of its divisors is an integer number (23878134).

Almost surely, 288690199 is an apocalyptic number.

88690199 is a deficient number, since it is larger than the sum of its proper divisors (6822337).

88690199 is a wasteful number, since it uses less digits than its factorization.

88690199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6822336.

The product of its (nonzero) digits is 279936, while the sum is 50.

The square root of 88690199 is about 9417.5473983410. The cubic root of 88690199 is about 445.9558614245.

The spelling of 88690199 in words is "eighty-eight million, six hundred ninety thousand, one hundred ninety-nine".

Divisors: 1 13 6822323 88690199