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86442941 = 138974713
BaseRepresentation
bin1010010011100…
…00001110111101
320000122202102102
411021300032331
5134112133231
612324434445
72066516144
oct511601675
9200582372
1086442941
1144881952
1224b48a25
1314ba7b90
14b6a275b
1578c7acb
hex52703bd

86442941 has 8 divisors (see below), whose sum is σ = 94139640. Its totient is φ = 78895872.

The previous prime is 86442919. The next prime is 86442949. The reversal of 86442941 is 14924468.

It can be written as a sum of positive squares in 4 ways, for example, as 8826841 + 77616100 = 2971^2 + 8810^2 .

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 86442941 - 210 = 86441917 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86442895 and 86442904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86442949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36200 + ... + 38513.

It is an arithmetic number, because the mean of its divisors is an integer number (11767455).

Almost surely, 286442941 is an apocalyptic number.

It is an amenable number.

86442941 is a deficient number, since it is larger than the sum of its proper divisors (7696699).

86442941 is a wasteful number, since it uses less digits than its factorization.

86442941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74815.

The product of its digits is 55296, while the sum is 38.

The square root of 86442941 is about 9297.4696019939. The cubic root of 86442941 is about 442.1570065942.

The spelling of 86442941 in words is "eighty-six million, four hundred forty-two thousand, nine hundred forty-one".

Divisors: 1 13 89 1157 74713 971269 6649457 86442941