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1385186304 = 21032112137
BaseRepresentation
bin101001010010000…
…0100010000000000
310120112110202101110
41102210010100000
510314101430204
6345241203320
746216614015
oct12244042000
93515422343
101385186304
116509a0a77
12327a90540
13190c92b88
14d1d7770c
158191a889
hex52904400

1385186304 has 88 divisors (see below), whose sum is σ = 3711260128. Its totient is φ = 459325440.

The previous prime is 1385186281. The next prime is 1385186311. The reversal of 1385186304 is 4036815831.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 647124 + ... + 649260.

Almost surely, 21385186304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1385186304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1855630064).

1385186304 is an abundant number, since it is smaller than the sum of its proper divisors (2326073824).

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

1385186304 is a wasteful number, since it uses less digits than its factorization.

1385186304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2371 (or 2353 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 1385186304 is about 37218.0910848474. The cubic root of 1385186304 is about 1114.7292482078.

The spelling of 1385186304 in words is "one billion, three hundred eighty-five million, one hundred eighty-six thousand, three hundred four".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 128 192 211 256 384 422 512 633 768 844 1024 1266 1536 1688 2137 2532 3072 3376 4274 5064 6411 6752 8548 10128 12822 13504 17096 20256 25644 27008 34192 40512 51288 54016 68384 81024 102576 108032 136768 162048 205152 216064 273536 324096 410304 450907 547072 648192 820608 901814 1094144 1352721 1641216 1803628 2188288 2705442 3282432 3607256 5410884 6564864 7214512 10821768 14429024 21643536 28858048 43287072 57716096 86574144 115432192 173148288 230864384 346296576 461728768 692593152 1385186304