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1388676050 = 25227773521
BaseRepresentation
bin101001011000101…
…1000001111010010
310120210001001102022
41102301120033102
510321000113200
6345444051442
746261360136
oct12261301722
93523031368
101388676050
11652964963
12329093b82
13191915408
14d26053c6
1581da9885
hex52c583d2

1388676050 has 12 divisors (see below), whose sum is σ = 2582937546. Its totient is φ = 555470400.

The previous prime is 1388676043. The next prime is 1388676061. The reversal of 1388676050 is 506768831.

It can be written as a sum of positive squares in 3 ways, for example, as 797554081 + 591121969 = 28241^2 + 24313^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1388675992 and 1388676010.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13886711 + ... + 13886810.

Almost surely, 21388676050 is an apocalyptic number.

1388676050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1388676050 is a deficient number, since it is larger than the sum of its proper divisors (1194261496).

1388676050 is a wasteful number, since it uses less digits than its factorization.

1388676050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27773533 (or 27773528 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 1388676050 is about 37264.9439822469. The cubic root of 1388676050 is about 1115.6645880127.

The spelling of 1388676050 in words is "one billion, three hundred eighty-eight million, six hundred seventy-six thousand, fifty".

Divisors: 1 2 5 10 25 50 27773521 55547042 138867605 277735210 694338025 1388676050