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1380504668 = 221492818243
BaseRepresentation
bin101001001001000…
…1101010001011100
310120012122220101112
41102102031101130
510311402122133
6344553001152
746132044644
oct12222152134
93505586345
101380504668
11649293654
123263b31b8
13190013c8a
14d14b9524
15812e3648
hex5248d45c

1380504668 has 24 divisors (see below), whose sum is σ = 2441048400. Its totient is φ = 683096960.

The previous prime is 1380504667. The next prime is 1380504673. The reversal of 1380504668 is 8664050831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1380504667) by changing a digit.

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, 163355 + ... + 171597.

It is an arithmetic number, because the mean of its divisors is an integer number (101710350).

Almost surely, 21380504668 is an apocalyptic number.

It is an amenable number.

1380504668 is a deficient number, since it is larger than the sum of its proper divisors (1060543732).

1380504668 is a wasteful number, since it uses less digits than its factorization.

1380504668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8677 (or 8675 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 1380504668 is about 37155.1432240545. The cubic root of 1380504668 is about 1113.4719812110.

The spelling of 1380504668 in words is "one billion, three hundred eighty million, five hundred four thousand, six hundred sixty-eight".

Divisors: 1 2 4 149 281 298 562 596 1124 8243 16486 32972 41869 83738 167476 1228207 2316283 2456414 4632566 4912828 9265132 345126167 690252334 1380504668