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88143841 = 611444981
BaseRepresentation
bin1010100000011…
…11011111100001
320010212011121201
411100033133201
5140031100331
612425121201
72120132062
oct520173741
9203764551
1088143841
1145833855
1225629201
1315352126
14b9c6569
157b11a61
hex540f7e1

88143841 has 4 divisors (see below), whose sum is σ = 89588884. Its totient is φ = 86698800.

The previous prime is 88143787. The next prime is 88143863. The reversal of 88143841 is 14834188.

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

It can be written as a sum of positive squares in 2 ways, for example, as 25401600 + 62742241 = 5040^2 + 7921^2 .

It is a cyclic number.

It is not a de Polignac number, because 88143841 - 29 = 88143329 is a prime.

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 88143841.

It is not an unprimeable number, because it can be changed into a prime (88143871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 722430 + ... + 722551.

It is an arithmetic number, because the mean of its divisors is an integer number (22397221).

Almost surely, 288143841 is an apocalyptic number.

It is an amenable number.

88143841 is a deficient number, since it is larger than the sum of its proper divisors (1445043).

88143841 is a wasteful number, since it uses less digits than its factorization.

88143841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1445042.

The product of its digits is 24576, while the sum is 37.

The square root of 88143841 is about 9388.4951403300. The cubic root of 88143841 is about 445.0382343111.

The spelling of 88143841 in words is "eighty-eight million, one hundred forty-three thousand, eight hundred forty-one".

Divisors: 1 61 1444981 88143841