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379805320 = 23564114813
BaseRepresentation
bin10110101000110…
…101111010001000
3222110200002221201
4112220311322020
51234212232240
6101404313544
712261202066
oct2650657210
9873602851
10379805320
111854323a4
12a72428b4
13608c069b
1438629036
1523524d9a
hex16a35e88

379805320 has 32 divisors (see below), whose sum is σ = 855952920. Its totient is φ = 151674880.

The previous prime is 379805299. The next prime is 379805339. The reversal of 379805320 is 23508973.

It can be written as a sum of positive squares in 4 ways, for example, as 339075396 + 40729924 = 18414^2 + 6382^2 .

It is a super-2 number, since 2×3798053202 = 288504162200604800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 379805320.

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, 18234 + ... + 33046.

Almost surely, 2379805320 is an apocalyptic number.

It is an amenable number.

379805320 is an abundant number, since it is smaller than the sum of its proper divisors (476147600).

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

379805320 is a wasteful number, since it uses less digits than its factorization.

379805320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15465 (or 15461 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 379805320 is about 19488.5946132603. The cubic root of 379805320 is about 724.1919304345.

The spelling of 379805320 in words is "three hundred seventy-nine million, eight hundred five thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 641 1282 2564 3205 5128 6410 12820 14813 25640 29626 59252 74065 118504 148130 296260 592520 9495133 18990266 37980532 47475665 75961064 94951330 189902660 379805320