Search a number
-
+
1387314630 = 2325133773439
BaseRepresentation
bin101001010110000…
…1011110111000110
310120200110212220100
41102230023313012
510320123032010
6345354544530
746243660032
oct12254136706
93520425810
101387314630
11652115019
12328738146
13191559840
14d236d1c2
1581bdb2c0
hex52b0bdc6

1387314630 has 192 divisors, whose sum is σ = 4053329280. Its totient is φ = 326965248.

The previous prime is 1387314629. The next prime is 1387314671. The reversal of 1387314630 is 364137831.

1387314630 is a `hidden beast` number, since 1 + 3 + 8 + 7 + 3 + 14 + 630 = 666.

1387314630 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×13873146302 = 3849283765224073800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3159951 + ... + 3160389.

It is an arithmetic number, because the mean of its divisors is an integer number (21111090).

Almost surely, 21387314630 is an apocalyptic number.

1387314630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1387314630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2026664640).

1387314630 is an abundant number, since it is smaller than the sum of its proper divisors (2666014650).

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

1387314630 is a wasteful number, since it uses less digits than its factorization.

1387314630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575 (or 572 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 1387314630 is about 37246.6727373063. The cubic root of 1387314630 is about 1115.2998797923.

The spelling of 1387314630 in words is "one billion, three hundred eighty-seven million, three hundred fourteen thousand, six hundred thirty".