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380427886660 = 225172039954851
BaseRepresentation
bin1011000100100110100…
…01001110000001000100
31100100221200011222220011
411202103101032001010
522213104014333120
6450433253520004
736325233453043
oct5422321160104
91310850158804
10380427886660
1113737a695a18
1261890643004
1329b497ba0a3
14145aca6055a
159d684edc5a
hex589344e044

380427886660 has 48 divisors (see below), whose sum is σ = 845949484800. Its totient is φ = 143210278400.

The previous prime is 380427886627. The next prime is 380427886661. The reversal of 380427886660 is 66688724083.

It is a junction number, because it is equal to n+sod(n) for n = 380427886595 and 380427886604.

It is not an unprimeable number, because it can be changed into a prime (380427886661) 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, 6908235 + ... + 6963085.

It is an arithmetic number, because the mean of its divisors is an integer number (17623947600).

Almost surely, 2380427886660 is an apocalyptic number.

It is an amenable number.

380427886660 is an abundant number, since it is smaller than the sum of its proper divisors (465521598140).

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

380427886660 is a wasteful number, since it uses less digits than its factorization.

380427886660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75276 (or 75274 counting only the distinct ones).

The product of its (nonzero) digits is 18579456, while the sum is 58.

The spelling of 380427886660 in words is "three hundred eighty billion, four hundred twenty-seven million, eight hundred eighty-six thousand, six hundred sixty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 20399 40798 54851 81596 101995 109702 203990 219404 274255 346783 407980 548510 693566 932467 1097020 1387132 1733915 1864934 3467830 3729868 4662335 6935660 9324670 18649340 1118905549 2237811098 4475622196 5594527745 11189055490 19021394333 22378110980 38042788666 76085577332 95106971665 190213943330 380427886660