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1380182243 = 11125471113
BaseRepresentation
bin101001001000011…
…1110100011100011
310120012001112002212
41102100332203203
510311311312433
6344542032335
746126232636
oct12220764343
93505045085
101380182243
11649093390
123262786ab
1318cc302ab
14d1433c1d
158127cd48
hex5243e8e3

1380182243 has 4 divisors (see below), whose sum is σ = 1505653368. Its totient is φ = 1254711120.

The previous prime is 1380182233. The next prime is 1380182267. The reversal of 1380182243 is 3422810831.

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 1380182243 - 28 = 1380181987 is a prime.

It is a super-3 number, since 3×13801822433 (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1380182233) 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, 62735546 + ... + 62735567.

It is an arithmetic number, because the mean of its divisors is an integer number (376413342).

Almost surely, 21380182243 is an apocalyptic number.

1380182243 is a deficient number, since it is larger than the sum of its proper divisors (125471125).

1380182243 is a wasteful number, since it uses less digits than its factorization.

1380182243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125471124.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 1380182243 is about 37150.8040693603. The cubic root of 1380182243 is about 1113.3852884806.

The spelling of 1380182243 in words is "one billion, three hundred eighty million, one hundred eighty-two thousand, two hundred forty-three".

Divisors: 1 11 125471113 1380182243