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88101661 = 234193427
BaseRepresentation
bin1010100000001…
…01001100011101
320010210000202111
411100011030131
5140023223121
612424154021
72116565104
oct520051435
9203700674
1088101661
114580509a
1225608911
1315338b7b
14b9b503b
157b042e1
hex540531d

88101661 has 8 divisors (see below), whose sum is σ = 94175424. Its totient is φ = 82214880.

The previous prime is 88101631. The next prime is 88101677. The reversal of 88101661 is 16610188.

It is a happy number.

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

It is not a de Polignac number, because 88101661 - 29 = 88101149 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 (88101631) 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, 45771 + ... + 47656.

It is an arithmetic number, because the mean of its divisors is an integer number (11771928).

Almost surely, 288101661 is an apocalyptic number.

It is an amenable number.

88101661 is a deficient number, since it is larger than the sum of its proper divisors (6073763).

88101661 is a wasteful number, since it uses less digits than its factorization.

88101661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93491.

The product of its (nonzero) digits is 2304, while the sum is 31.

The square root of 88101661 is about 9386.2485051271. The cubic root of 88101661 is about 444.9672340475.

The spelling of 88101661 in words is "eighty-eight million, one hundred one thousand, six hundred sixty-one".

Divisors: 1 23 41 943 93427 2148821 3830507 88101661