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1373474285 = 51716158521
BaseRepresentation
bin101000111011101…
…1000110111101101
310112201102201111222
41101313120313231
510303102134120
6344142153125
746015224131
oct12167306755
93481381458
101373474285
11645321617
12323b827a5
1318b721ca1
14d05a93c1
15808a5525
hex51dd8ded

1373474285 has 8 divisors (see below), whose sum is σ = 1745120376. Its totient is φ = 1034145280.

The previous prime is 1373474273. The next prime is 1373474287. The reversal of 1373474285 is 5824743731.

It can be written as a sum of positive squares in 4 ways, for example, as 245454889 + 1128019396 = 15667^2 + 33586^2 .

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

It is not a de Polignac number, because 1373474285 - 24 = 1373474269 is a prime.

It is a super-2 number, since 2×13734742852 = 3772863223112522450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1373474287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8079176 + ... + 8079345.

It is an arithmetic number, because the mean of its divisors is an integer number (218140047).

Almost surely, 21373474285 is an apocalyptic number.

It is an amenable number.

1373474285 is a deficient number, since it is larger than the sum of its proper divisors (371646091).

1373474285 is a wasteful number, since it uses less digits than its factorization.

1373474285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16158543.

The product of its digits is 564480, while the sum is 44.

The square root of 1373474285 is about 37060.4139885134. The cubic root of 1373474285 is about 1111.5786009711.

The spelling of 1373474285 in words is "one billion, three hundred seventy-three million, four hundred seventy-four thousand, two hundred eighty-five".

Divisors: 1 5 17 85 16158521 80792605 274694857 1373474285