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1373019481 = 31109406339
BaseRepresentation
bin101000111010110…
…1001110101011001
310112200120121122101
41101311221311121
510302443110411
6344124323401
746011321151
oct12165516531
93480517571
101373019481
11645040949
123239a3561
1318b5c2c82
14d04cb761
15808158c1
hex51d69d59

1373019481 has 8 divisors (see below), whose sum is σ = 1430316800. Its totient is φ = 1316535120.

The previous prime is 1373019469. The next prime is 1373019499. The reversal of 1373019481 is 1849103731.

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

It is a cyclic number.

It is not a de Polignac number, because 1373019481 - 211 = 1373017433 is a prime.

It is a super-2 number, since 2×13730194812 = 3770364990411018722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1373019481.

It is not an unprimeable number, because it can be changed into a prime (1373019451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199791 + ... + 206548.

It is an arithmetic number, because the mean of its divisors is an integer number (178789600).

Almost surely, 21373019481 is an apocalyptic number.

It is an amenable number.

1373019481 is a deficient number, since it is larger than the sum of its proper divisors (57297319).

1373019481 is a wasteful number, since it uses less digits than its factorization.

1373019481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406479.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 1373019481 is about 37054.2774993657. The cubic root of 1373019481 is about 1111.4558936122.

The spelling of 1373019481 in words is "one billion, three hundred seventy-three million, nineteen thousand, four hundred eighty-one".

Divisors: 1 31 109 3379 406339 12596509 44290951 1373019481