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1380432670 = 25138043267
BaseRepresentation
bin101001001000111…
…1011101100011110
310120012112020121221
41102101323230132
510311342321140
6344551243554
746131325021
oct12221735436
93505466557
101380432670
11649244551
123263795ba
1318ccba286
14d149b1b8
15812cc14a
hex5247bb1e

1380432670 has 8 divisors (see below), whose sum is σ = 2484778824. Its totient is φ = 552173064.

The previous prime is 1380432661. The next prime is 1380432673. The reversal of 1380432670 is 762340831.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1380432673) by changing a digit.

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, 69021624 + ... + 69021643.

It is an arithmetic number, because the mean of its divisors is an integer number (310597353).

Almost surely, 21380432670 is an apocalyptic number.

1380432670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1380432670 is a deficient number, since it is larger than the sum of its proper divisors (1104346154).

1380432670 is a wasteful number, since it uses less digits than its factorization.

1380432670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138043274.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 1380432670 is about 37154.1743280617. The cubic root of 1380432670 is about 1113.4526237612.

The spelling of 1380432670 in words is "one billion, three hundred eighty million, four hundred thirty-two thousand, six hundred seventy".

Divisors: 1 2 5 10 138043267 276086534 690216335 1380432670