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1387349045 = 5318950639
BaseRepresentation
bin101001010110001…
…0100010000110101
310120200112122002222
41102230110100311
510320130132140
6345355412125
746244162255
oct12254242065
93520478088
101387349045
11652138965
12328754045
1319156c3c4
14d237b965
1581be65b5
hex52b14435

1387349045 has 8 divisors (see below), whose sum is σ = 1718522880. Its totient is φ = 1074076560.

The previous prime is 1387349027. The next prime is 1387349059. The reversal of 1387349045 is 5409437831.

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

It is not a de Polignac number, because 1387349045 - 222 = 1383154741 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1387348987 and 1387349005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4475165 + ... + 4475474.

It is an arithmetic number, because the mean of its divisors is an integer number (214815360).

Almost surely, 21387349045 is an apocalyptic number.

It is an amenable number.

1387349045 is a deficient number, since it is larger than the sum of its proper divisors (331173835).

1387349045 is an equidigital number, since it uses as much as digits as its factorization.

1387349045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8950675.

The product of its (nonzero) digits is 362880, while the sum is 44.

The square root of 1387349045 is about 37247.1347220159. The cubic root of 1387349045 is about 1115.3091021002.

The spelling of 1387349045 in words is "one billion, three hundred eighty-seven million, three hundred forty-nine thousand, forty-five".

Divisors: 1 5 31 155 8950639 44753195 277469809 1387349045