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380427643420 = 225115992886839
BaseRepresentation
bin1011000100100110100…
…00010010101000011100
31100100221122201122020021
411202103100102220130
522213103434042140
6450433244401524
736325231420636
oct5422320225034
91310848648207
10380427643420
1113737a53a1a0
12618905462a4
1329b49733466
14145ac9d9a56
159d684a1b4a
hex5893412a1c

380427643420 has 48 divisors (see below), whose sum is σ = 872980416000. Its totient is φ = 138106329920.

The previous prime is 380427643403. The next prime is 380427643423. The reversal of 380427643420 is 24346724083.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380427643423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1311640 + ... + 1575199.

It is an arithmetic number, because the mean of its divisors is an integer number (18187092000).

Almost surely, 2380427643420 is an apocalyptic number.

It is an amenable number.

380427643420 is an abundant number, since it is smaller than the sum of its proper divisors (492552772580).

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

380427643420 is a wasteful number, since it uses less digits than its factorization.

380427643420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2887458 (or 2887456 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 43.

The spelling of 380427643420 in words is "three hundred eighty billion, four hundred twenty-seven million, six hundred forty-three thousand, four hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 599 1198 2396 2995 5990 6589 11980 13178 26356 32945 65890 131780 2886839 5773678 11547356 14434195 28868390 31755229 57736780 63510458 127020916 158776145 317552290 635104580 1729216561 3458433122 6916866244 8646082805 17292165610 19021382171 34584331220 38042764342 76085528684 95106910855 190213821710 380427643420