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82368031 = 372226163
BaseRepresentation
bin1001110100011…
…01011000011111
312201222201200211
410322031120133
5132041234111
612101233251
72020055014
oct472153037
9181881624
1082368031
1142549359
1223702827
13140ac1a5
14ad2170b
157370521
hex4e8d61f

82368031 has 4 divisors (see below), whose sum is σ = 84594232. Its totient is φ = 80141832.

The previous prime is 82368019. The next prime is 82368047. The reversal of 82368031 is 13086328.

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

It is a cyclic number.

It is not a de Polignac number, because 82368031 - 27 = 82367903 is a prime.

It is a super-2 number, since 2×823680312 = 13568985061633922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82367984 and 82368002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82368001) 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, 1113045 + ... + 1113118.

It is an arithmetic number, because the mean of its divisors is an integer number (21148558).

Almost surely, 282368031 is an apocalyptic number.

82368031 is a deficient number, since it is larger than the sum of its proper divisors (2226201).

82368031 is a wasteful number, since it uses less digits than its factorization.

82368031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2226200.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 82368031 is about 9075.6835004312. The cubic root of 82368031 is about 435.0971395340.

The spelling of 82368031 in words is "eighty-two million, three hundred sixty-eight thousand, thirty-one".

Divisors: 1 37 2226163 82368031