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1380786630 = 23554784143
BaseRepresentation
bin101001001001101…
…0010000111000110
310120020012020011120
41102103102013012
510311440133010
6345003014410
746134330666
oct12223220706
93506166146
101380786630
11649466483
1232650a406
131900b2412
14d15501a6
158134be70
hex524d21c6

1380786630 has 32 divisors (see below), whose sum is σ = 3319985664. Its totient is φ = 367532256.

The previous prime is 1380786619. The next prime is 1380786637. The reversal of 1380786630 is 366870831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1380786637) 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 15 ways as a sum of consecutive naturals, for example, 25662 + ... + 58481.

It is an arithmetic number, because the mean of its divisors is an integer number (103749552).

Almost surely, 21380786630 is an apocalyptic number.

1380786630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1380786630 is an abundant number, since it is smaller than the sum of its proper divisors (1939199034).

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

1380786630 is a wasteful number, since it uses less digits than its factorization.

1380786630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84700.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 1380786630 is about 37158.9374175312. The cubic root of 1380786630 is about 1113.5477833003.

The spelling of 1380786630 in words is "one billion, three hundred eighty million, seven hundred eighty-six thousand, six hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 547 1094 1641 2735 3282 5470 8205 16410 84143 168286 252429 420715 504858 841430 1262145 2524290 46026221 92052442 138078663 230131105 276157326 460262210 690393315 1380786630