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88689601 = 71113412161
BaseRepresentation
bin1010100100101…
…00101111000001
320011212220021001
411102110233001
5140201031401
612444532001
72124564160
oct522245701
9204786231
1088689601
11460768a0
1225851001
13154b3670
14bac93d7
157bbd601
hex5494bc1

88689601 has 32 divisors (see below), whose sum is σ = 122040576. Its totient is φ = 62208000.

The previous prime is 88689589. The next prime is 88689613. The reversal of 88689601 is 10698688.

It is an interprime number because it is at equal distance from previous prime (88689589) and next prime (88689613).

It is a 2-Lehmer number, since φ(88689601) divides (88689601-1)2.

It is a cyclic number.

It is a Carmichael number.

It is not a de Polignac number, because 88689601 - 215 = 88656833 is a prime.

It is a deceptive number, since it divides R88689600.

It is not an unprimeable number, because it can be changed into a prime (88689631) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39961 + ... + 42121.

It is an arithmetic number, because the mean of its divisors is an integer number (3813768).

It is a Poulet number, since it divides 288689600-1.

Almost surely, 288689601 is an apocalyptic number.

It is an amenable number.

88689601 is a deficient number, since it is larger than the sum of its proper divisors (33350975).

88689601 is a wasteful number, since it uses less digits than its factorization.

88689601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2233.

The product of its (nonzero) digits is 165888, while the sum is 46.

The square root of 88689601 is about 9417.5156490446. The cubic root of 88689601 is about 445.9548591259.

The spelling of 88689601 in words is "eighty-eight million, six hundred eighty-nine thousand, six hundred one".

Divisors: 1 7 11 13 41 77 91 143 287 451 533 1001 2161 3157 3731 5863 15127 23771 28093 41041 88601 166397 196651 309023 620207 974611 1151813 2163161 6822277 8062691 12669943 88689601