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1387241466 = 231317785147
BaseRepresentation
bin101001010101111…
…1001111111111010
310120200100011112120
41102223321333322
510320113211331
6345353222110
746243233522
oct12253717772
93520304476
101387241466
11652075056
12328701936
13191532450
14d2350682
1581bc4796
hex52af9ffa

1387241466 has 16 divisors (see below), whose sum is σ = 2987904864. Its totient is φ = 426843504.

The previous prime is 1387241417. The next prime is 1387241473. The reversal of 1387241466 is 6641427831.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8892496 + ... + 8892651.

It is an arithmetic number, because the mean of its divisors is an integer number (186744054).

Almost surely, 21387241466 is an apocalyptic number.

1387241466 is an abundant number, since it is smaller than the sum of its proper divisors (1600663398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1387241466 is a wasteful number, since it uses less digits than its factorization.

1387241466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17785165.

The product of its digits is 193536, while the sum is 42.

The square root of 1387241466 is about 37245.6905695142. The cubic root of 1387241466 is about 1115.2802732726.

The spelling of 1387241466 in words is "one billion, three hundred eighty-seven million, two hundred forty-one thousand, four hundred sixty-six".

Divisors: 1 2 3 6 13 26 39 78 17785147 35570294 53355441 106710882 231206911 462413822 693620733 1387241466