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1386730212 = 223722217433
BaseRepresentation
bin101001010100111…
…1101001011100100
310120122101012020020
41102221331023210
510320000331322
6345334235140
746236004140
oct12251751344
93518335206
101386730212
11651855a2a
123284b5ab0
131913b382a
14d225a220
1581b2305c
hex52a7d2e4

1386730212 has 48 divisors (see below), whose sum is σ = 3700109952. Its totient is φ = 395976960.

The previous prime is 1386730201. The next prime is 1386730217. The reversal of 1386730212 is 2120376831.

It is not an unprimeable number, because it can be changed into a prime (1386730217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182848 + ... + 190280.

It is an arithmetic number, because the mean of its divisors is an integer number (77085624).

Almost surely, 21386730212 is an apocalyptic number.

1386730212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1386730212 is an abundant number, since it is smaller than the sum of its proper divisors (2313379740).

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

1386730212 is a wasteful number, since it uses less digits than its factorization.

1386730212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9668 (or 9666 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 1386730212 is about 37238.8266732452. The cubic root of 1386730212 is about 1115.1432479660.

The spelling of 1386730212 in words is "one billion, three hundred eighty-six million, seven hundred thirty thousand, two hundred twelve".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 2221 4442 6663 7433 8884 13326 14866 15547 22299 26652 29732 31094 44598 46641 52031 62188 89196 93282 104062 156093 186564 208124 312186 624372 16508693 33017386 49526079 66034772 99052158 115560851 198104316 231121702 346682553 462243404 693365106 1386730212