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1379018141 = 2116535631
BaseRepresentation
bin101001000110010…
…0010010110011101
310120002212101020222
41102030202112131
510311012040031
6344501051125
746113314024
oct12214422635
93502771228
101379018141
11648468816
123259b6aa5
1318c913487
14d120d8bb
15810ece7b
hex5232259d

1379018141 has 4 divisors (see below), whose sum is σ = 1385553984. Its totient is φ = 1372482300.

The previous prime is 1379018131. The next prime is 1379018143. The reversal of 1379018141 is 1418109731.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1379018141 - 230 = 305276317 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 (1379018143) 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, 3267605 + ... + 3268026.

It is an arithmetic number, because the mean of its divisors is an integer number (346388496).

Almost surely, 21379018141 is an apocalyptic number.

It is an amenable number.

1379018141 is a deficient number, since it is larger than the sum of its proper divisors (6535843).

1379018141 is an equidigital number, since it uses as much as digits as its factorization.

1379018141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6535842.

The product of its (nonzero) digits is 6048, while the sum is 35.

The square root of 1379018141 is about 37135.1335126185. The cubic root of 1379018141 is about 1113.0721755780.

The spelling of 1379018141 in words is "one billion, three hundred seventy-nine million, eighteen thousand, one hundred forty-one".

Divisors: 1 211 6535631 1379018141