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1368023231 = 4337014507
BaseRepresentation
bin101000110001010…
…0110000010111111
310112100011210002002
41101202212002333
510300203220411
6343425252515
745621001631
oct12142460277
93470153062
101368023231
11642239113
1232219413b
1318a563b03
14cd98aa51
158017a33b
hex518a60bf

1368023231 has 8 divisors (see below), whose sum is σ = 1373443344. Its totient is φ = 1362614400.

The previous prime is 1368023221. The next prime is 1368023257. The reversal of 1368023231 is 1323208631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1368023231 is a prime.

It is a super-2 number, since 2×13680232312 = 3742975121111358722, 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 = 1368023194 and 1368023203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1368023221) 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, 301280 + ... + 305786.

It is an arithmetic number, because the mean of its divisors is an integer number (171680418).

Almost surely, 21368023231 is an apocalyptic number.

1368023231 is a deficient number, since it is larger than the sum of its proper divisors (5420113).

1368023231 is an equidigital number, since it uses as much as digits as its factorization.

1368023231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5641.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 1368023231 is about 36986.7980636335. The cubic root of 1368023231 is about 1110.1061043501.

The spelling of 1368023231 in words is "one billion, three hundred sixty-eight million, twenty-three thousand, two hundred thirty-one".

Divisors: 1 433 701 4507 303533 1951531 3159407 1368023231