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1385324688 = 243112623721
BaseRepresentation
bin101001010010010…
…0110000010010000
310120112201210012210
41102210212002100
510314120342223
6345244152120
746221031326
oct12244460220
93515653183
101385324688
11650a85a40
12327b38640
13191010b67
14d1db1d16
1581946893
hex52926090

1385324688 has 40 divisors (see below), whose sum is σ = 3904098336. Its totient is φ = 419795200.

The previous prime is 1385324663. The next prime is 1385324711. The reversal of 1385324688 is 8864235831.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1311333 + ... + 1312388.

Almost surely, 21385324688 is an apocalyptic number.

It is an amenable number.

1385324688 is an abundant number, since it is smaller than the sum of its proper divisors (2518773648).

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

1385324688 is a wasteful number, since it uses less digits than its factorization.

1385324688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2623743 (or 2623737 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 48.

The square root of 1385324688 is about 37219.9501343030. The cubic root of 1385324688 is about 1114.7663684987.

The spelling of 1385324688 in words is "one billion, three hundred eighty-five million, three hundred twenty-four thousand, six hundred eighty-eight".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 33 44 48 66 88 132 176 264 528 2623721 5247442 7871163 10494884 15742326 20989768 28860931 31484652 41979536 57721862 62969304 86582793 115443724 125938608 173165586 230887448 346331172 461774896 692662344 1385324688