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88866381 = 391932233
BaseRepresentation
bin1010100101111…
…11111001001101
320012012212202110
411102333321031
5140222211011
612452414233
72126231442
oct522777115
9205185673
1088866381
114618769a
1225917379
1315545c76
14bb339c9
157c05ba6
hex54bfe4d

88866381 has 8 divisors (see below), whose sum is σ = 118621120. Its totient is φ = 59177952.

The previous prime is 88866377. The next prime is 88866391. The reversal of 88866381 is 18366888.

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 88866381 - 22 = 88866377 is a prime.

It is a super-2 number, since 2×888663812 = 15794467344074322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 88866381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88866301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13360 + ... + 18873.

It is an arithmetic number, because the mean of its divisors is an integer number (14827640).

Almost surely, 288866381 is an apocalyptic number.

It is an amenable number.

88866381 is a deficient number, since it is larger than the sum of its proper divisors (29754739).

88866381 is a wasteful number, since it uses less digits than its factorization.

88866381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33155.

The product of its digits is 442368, while the sum is 48.

The square root of 88866381 is about 9426.8966791835. The cubic root of 88866381 is about 446.2509614021.

The spelling of 88866381 in words is "eighty-eight million, eight hundred sixty-six thousand, three hundred eighty-one".

Divisors: 1 3 919 2757 32233 96699 29622127 88866381