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1373095642 = 2686547821
BaseRepresentation
bin101000111010111…
…1100011011011010
310112200201111010011
41101311330123122
510303003030032
6344130112134
746012056202
oct12165743332
93480644104
101373095642
11645093096
12323a1b64a
1318b61b839
14d050b402
158082d247
hex51d7c6da

1373095642 has 4 divisors (see below), whose sum is σ = 2059643466. Its totient is φ = 686547820.

The previous prime is 1373095639. The next prime is 1373095663. The reversal of 1373095642 is 2465903731.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2465903731 = 6997352423.

It can be written as a sum of positive squares in only one way, i.e., 919363041 + 453732601 = 30321^2 + 21301^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1373095595 and 1373095604.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 343273909 + ... + 343273912.

Almost surely, 21373095642 is an apocalyptic number.

1373095642 is a deficient number, since it is larger than the sum of its proper divisors (686547824).

1373095642 is an equidigital number, since it uses as much as digits as its factorization.

1373095642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686547823.

The product of its (nonzero) digits is 136080, while the sum is 40.

The square root of 1373095642 is about 37055.3051802303. The cubic root of 1373095642 is about 1111.4764439463.

The spelling of 1373095642 in words is "one billion, three hundred seventy-three million, ninety-five thousand, six hundred forty-two".

Divisors: 1 2 686547821 1373095642