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1387124344 = 23798092713
BaseRepresentation
bin101001010101101…
…1101011001111000
310120200010012212201
41102223131121320
510320100434334
6345350515544
746242235204
oct12253353170
93520105781
101387124344
11651aa5061
12328665bb4
131914c1048
14d231db04
1581b9ec14
hex52add678

1387124344 has 32 divisors (see below), whose sum is σ = 2638008000. Its totient is φ = 683684352.

The previous prime is 1387124327. The next prime is 1387124371. The reversal of 1387124344 is 4434217831.

It is a super-2 number, since 2×13871243442 = 3848227891434860672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 509932 + ... + 512644.

It is an arithmetic number, because the mean of its divisors is an integer number (82437750).

Almost surely, 21387124344 is an apocalyptic number.

It is an amenable number.

1387124344 is a deficient number, since it is larger than the sum of its proper divisors (1250883656).

1387124344 is a wasteful number, since it uses less digits than its factorization.

1387124344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3607 (or 3603 counting only the distinct ones).

The product of its digits is 64512, while the sum is 37.

The square root of 1387124344 is about 37244.1182470467. The cubic root of 1387124344 is about 1115.2488854343.

The spelling of 1387124344 in words is "one billion, three hundred eighty-seven million, one hundred twenty-four thousand, three hundred forty-four".

Divisors: 1 2 4 8 79 158 316 632 809 1618 2713 3236 5426 6472 10852 21704 63911 127822 214327 255644 428654 511288 857308 1714616 2194817 4389634 8779268 17558536 173390543 346781086 693562172 1387124344