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86913020 = 2254345651
BaseRepresentation
bin1010010111000…
…10111111111100
320001112122020202
411023202333330
5134222204040
612342503032
72103514505
oct513427774
9201478222
1086913020
1145073047
1225134a78
1315010b2c
14b785bac
15796c015
hex52e2ffc

86913020 has 12 divisors (see below), whose sum is σ = 182517384. Its totient is φ = 34765200.

The previous prime is 86913007. The next prime is 86913053. The reversal of 86913020 is 2031968.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2172806 + ... + 2172845.

It is an arithmetic number, because the mean of its divisors is an integer number (15209782).

Almost surely, 286913020 is an apocalyptic number.

It is an amenable number.

86913020 is an abundant number, since it is smaller than the sum of its proper divisors (95604364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86913020 is a wasteful number, since it uses less digits than its factorization.

86913020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4345660 (or 4345658 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 86913020 is about 9322.7152697055. The cubic root of 86913020 is about 442.9570452978.

Adding to 86913020 its reverse (2031968), we get a palindrome (88944988).

It can be divided in two parts, 8691 and 3020, that added together give a palindrome (11711).

The spelling of 86913020 in words is "eighty-six million, nine hundred thirteen thousand, twenty".

Divisors: 1 2 4 5 10 20 4345651 8691302 17382604 21728255 43456510 86913020