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1380462143 = 12413111211
BaseRepresentation
bin101001001001000…
…0010111000111111
310120012120202001112
41102102002320333
510311344242033
6344552032235
746131506654
oct12222027077
93505522045
101380462143
11649264705
1232639267b
1318ccca808
14d14a7c2b
15812d5c48
hex52482e3f

1380462143 has 4 divisors (see below), whose sum is σ = 1380585768. Its totient is φ = 1380338520.

The previous prime is 1380462133. The next prime is 1380462197. The reversal of 1380462143 is 3412640831.

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 1380462143 - 210 = 1380461119 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 (1380462103) 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, 43193 + ... + 68018.

It is an arithmetic number, because the mean of its divisors is an integer number (345146442).

Almost surely, 21380462143 is an apocalyptic number.

1380462143 is a deficient number, since it is larger than the sum of its proper divisors (123625).

1380462143 is a wasteful number, since it uses less digits than its factorization.

1380462143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123624.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 1380462143 is about 37154.5709570168. The cubic root of 1380462143 is about 1113.4605479810.

The spelling of 1380462143 in words is "one billion, three hundred eighty million, four hundred sixty-two thousand, one hundred forty-three".

Divisors: 1 12413 111211 1380462143