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88663381 = 175998707
BaseRepresentation
bin1010100100011…
…10010101010101
320011211120021221
411102032111111
5140144212011
612444210341
72124424552
oct522162525
9204746257
1088663381
1146059124
12258399b1
13154a4751
14babda29
157bb5971
hex548e555

88663381 has 8 divisors (see below), whose sum is σ = 94046400. Its totient is φ = 83299008.

The previous prime is 88663369. The next prime is 88663397. The reversal of 88663381 is 18336688.

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

It is a cyclic number.

It is not a de Polignac number, because 88663381 - 223 = 80274773 is a prime.

It is a super-2 number, since 2×886633812 = 15722390260702322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88663681) 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 7 ways as a sum of consecutive naturals, for example, 5830 + ... + 14536.

It is an arithmetic number, because the mean of its divisors is an integer number (11755800).

Almost surely, 288663381 is an apocalyptic number.

It is an amenable number.

88663381 is a deficient number, since it is larger than the sum of its proper divisors (5383019).

88663381 is a wasteful number, since it uses less digits than its factorization.

88663381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9323.

The product of its digits is 165888, while the sum is 43.

The square root of 88663381 is about 9416.1234592586. The cubic root of 88663381 is about 445.9109077541.

The spelling of 88663381 in words is "eighty-eight million, six hundred sixty-three thousand, three hundred eighty-one".

Divisors: 1 17 599 8707 10183 148019 5215493 88663381