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1380130093 = 9901139393
BaseRepresentation
bin101001001000011…
…0001110100101101
310120011221212120101
41102100301310231
510311303130333
6344540551101
746125624616
oct12220616455
93504855511
101380130093
11649058191
12326252491
1318cc12634
14d141cc0d
158126c67d
hex52431d2d

1380130093 has 4 divisors (see below), whose sum is σ = 1380279388. Its totient is φ = 1379980800.

The previous prime is 1380130067. The next prime is 1380130099. The reversal of 1380130093 is 3900310831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3900310831 = 9901393931.

It can be written as a sum of positive squares in 2 ways, for example, as 1281783204 + 98346889 = 35802^2 + 9917^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1380130093 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 (1380130099) 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, 59796 + ... + 79597.

It is an arithmetic number, because the mean of its divisors is an integer number (345069847).

Almost surely, 21380130093 is an apocalyptic number.

It is an amenable number.

1380130093 is a deficient number, since it is larger than the sum of its proper divisors (149295).

1380130093 is an equidigital number, since it uses as much as digits as its factorization.

1380130093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149294.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 1380130093 is about 37150.1021936683. The cubic root of 1380130093 is about 1113.3712652663.

The spelling of 1380130093 in words is "one billion, three hundred eighty million, one hundred thirty thousand, ninety-three".

Divisors: 1 9901 139393 1380130093