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1380380312 = 23374663447
BaseRepresentation
bin101001001000110…
…1110111010011000
310120012102120210202
41102101232322120
510311334132222
6344550201332
746131016253
oct12221567230
93505376722
101380380312
11649209183
12326353248
1318cc9c4ac
14d148609a
15812bb892
hex5246ee98

1380380312 has 16 divisors (see below), whose sum is σ = 2658165360. Its totient is φ = 671536224.

The previous prime is 1380380311. The next prime is 1380380347. The reversal of 1380380312 is 2130830831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1380380311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2331428 + ... + 2332019.

It is an arithmetic number, because the mean of its divisors is an integer number (166135335).

Almost surely, 21380380312 is an apocalyptic number.

It is an amenable number.

1380380312 is a deficient number, since it is larger than the sum of its proper divisors (1277785048).

1380380312 is a wasteful number, since it uses less digits than its factorization.

1380380312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4663490 (or 4663486 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 1380380312 is about 37153.4697168380. The cubic root of 1380380312 is about 1113.4385463175.

The spelling of 1380380312 in words is "one billion, three hundred eighty million, three hundred eighty thousand, three hundred twelve".

Divisors: 1 2 4 8 37 74 148 296 4663447 9326894 18653788 37307576 172547539 345095078 690190156 1380380312