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1380189293 = 7325160649
BaseRepresentation
bin101001001000100…
…0000010001101101
310120012001212202222
41102101000101231
510311312024133
6344542125125
746126262330
oct12221002155
93505055688
101380189293
1164909870a
123262807a5
1318cc33572
14d1436617
158127ee98
hex5244046d

1380189293 has 8 divisors (see below), whose sum is σ = 1577870400. Its totient is φ = 1182636000.

The previous prime is 1380189277. The next prime is 1380189299. The reversal of 1380189293 is 3929810831.

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

It is not a de Polignac number, because 1380189293 - 24 = 1380189277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1380189299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7568 + ... + 53081.

It is an arithmetic number, because the mean of its divisors is an integer number (197233800).

Almost surely, 21380189293 is an apocalyptic number.

It is an amenable number.

1380189293 is a deficient number, since it is larger than the sum of its proper divisors (197681107).

1380189293 is an equidigital number, since it uses as much as digits as its factorization.

1380189293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63907.

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 1380189293 is about 37150.8989527844. The cubic root of 1380189293 is about 1113.3871842092.

The spelling of 1380189293 in words is "one billion, three hundred eighty million, one hundred eighty-nine thousand, two hundred ninety-three".

Divisors: 1 7 3251 22757 60649 424543 197169899 1380189293